Professor Stephen Sweeney

Professor of Photonics and Nanotechnology (Electronic & Nanoscale Engineering)

telephone: 01413304076
email: Stephen.J.Sweeney@glasgow.ac.uk

Rm 701, Rankine building, Oakfield Ave, Glasgow, G12 8LT

Biography

Professor Stephen Sweeney holds a BSc in Applied Physics and Qualified Teacher Status (QTS) from the University of Bath and a PhD in Semiconductor Laser Physics from the University of Surrey. Following his PhD and postdoctoral positions, he joined Marconi Optical Components as a Scientist, becoming Lead Scientist of the Laser and Amplifier Technology group. He returned to Surrey as a Lecturer, promoted to Chair in Physics in 2010. He led the Photonics group based in the Advanced Technology Institute from 2010-2015 and was Head of the Department of Physics from 2015-2018. He was awarded a prestigious EPSRC Leadership Fellowship allowing him to focus on developing near- and mid-infrared laser technologies for applications in high efficiency optical communications, sensing and photonic integration. In 2022, he moved with his group to the James Watt School of Engineering at the University of Glasgow as Professor of Photonics and Nanotechnology where he leads the Semiconductor Photonic Materials and Devices group. He is also the Convenor for Postgradaute studies in the James Watt School of Engineering at the University of Glasgow.

In addition to his academic role, he is the Chief Technology Officer for UK photonics start-up Zinir Ltd, he has sat on the Editorial Boards of IEEE Journal of Quantum Electronics and Journal of Materials Science: Materials in Electronics, has guest edited IET Optoelectronics, IEEE Journal of Selected Topics in Quantum Electronics and IoP Semiconductor Science and Technology. His other roles have included membership of the EPSRC III-V National Centre Steering Committee, the EPSRC and UKRI Colleges and the Institute of Physics Semiconductor Physics committee. He serves as an expert international advisor for the EU and several national funding agencies such as the Department of Energy (USA), National Science Foundation (USA), Singapore Research Agency, Enterprise Ireland, Leibnitz Foundation, FWO Belgium amongst others. He sits on the committees for a number of international conferences and has chaired several conferences in semiconductors and photonics. In 2015 he was President of the Physics and Astronomy section of the British Science Association. He is a Fellow of the Institute of Physics and a Fellow of SPIE.

Stephen is passionate about science and engineering and their role in the health and wealth of society. He enjoys engaging with people of all ages and regularly gives talks at schools, interviews for the national press and is an advocate for UK science and technology globally.

Research interests

Working closely with industry, Stephen's research interests range from developing new semiconductors for use in photonic devices such as lasers and photovoltaics through to the development of new photonic systems for use in communications, lighting, energy, biosciences, health and the emerging field of space-based photonics.

His work has led to a large number of published and edited journal papers, book chapters and patents.

List of publications available on Google Scholar

Publications

List by: Type | Date

Jump to: 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006

Number of items: 183.

2025

Al-Rubaiee, Mohanad, Sun, Xiao, Yuan, Bocheng, Fan, Yizhe, Zhu, Simeng, Sun, Yiming, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Simultaneous multi-wavelength mode-locked DFB laser based on waveguide Bragg grating microcavities. Optics Express, 33(11), pp. 22222-22234. (doi: 10.1364/OE.563242)

Sun, Xiao, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Sun, Yiming, Wang, Yupei, Wang, Jue, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Kelly, Anthony E. ORCID: https://orcid.org/0000-0002-6142-1760 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Narrow linewidth laser based on extended topological interface states in 1D photonic crystals. Laser and Photonics Reviews, (doi: 10.1002/lpor.202500383) (Early Online Publication)

Liu, Jingzhao, Zhao, Xingyu, Bian, Zijun, Harvey, Paul ORCID: https://orcid.org/0000-0003-1243-938X, Watson, Scott ORCID: https://orcid.org/0000-0002-9235-9242, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hogg, Richard ORCID: https://orcid.org/0000-0002-0781-6809 (2025) Interdependence of parasitic losses in photonic crystal surface emitting lasers. AIP Advances, 15, 045321. (doi: 10.1063/5.0252646)

Al-Rubaiee, Mohanad, Yuan, Bocheng, Fan, Yizhe, Zhu, Simeng, Sun, Yiming, Sun, Xiao, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Four-Wavelength Mode-Locked DFB Laser Using Chirped Sampled Bragg Grating. In: CLEO®/Europe-EQEC 2025, Munich, Germany, 23-27 Jun 2025, (Accepted for Publication)

Sun, Xiao, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Sun, Yiming, Wang, Jue, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Kelly, Anthony E. ORCID: https://orcid.org/0000-0002-6142-1760 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Monolithic 1550 nm Narrow Linewidth Laser by Optical Injection Locking. In: CLEO®/Europe-EQEC 2025, Munich, Germany, 23-27 Jun 2025, (Accepted for Publication)

Al-Rubaiee, Mohanad, Fan, Yizhe, Yuan, Bocheng, Zhu, Simeng, Sun, Yiming, Hezarfen, Ahmet Seckin, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Four-Wavelength Mode-Locked DFB Laser with Four Phase-Shifted Chirped Sampled Bragg Grating. In: 2025 Conference on Lasers and Electro-Optics (CLEO 2025), Long Beach, California, USA, 04-09 May 2025, (Accepted for Publication)

Hezarfen, Ahmet Seckin, Zhu, Simeng, Yuan, Bocheng, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Harnessing the Mechanical Kerr Effect for Optical Control in Photonic Crystal Nanobeam Cavities. In: 2025 Conference on Lasers and Electro-Optics (CLEO 2025), Long Beach, California, USA, 04-09 May 2025, (Accepted for Publication)

Zhu, Simeng, Yuan, Bocheng, Al Rubaiee, Mohanad Jamal Abbas, Sun, Yiming, Fan, Yizhe, Hezarfen, Ahmet Seckin, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Widely tunable photonic filter based on equivalent chirped four-phase-shifted sampled Bragg gratings. ACS Photonics, 12(2), pp. 899-907. (doi: 10.1021/acsphotonics.4c01899) (PMID:39989928) (PMCID:PMC11843717)

Sun, Xiao, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Fan, Yizhe, Al-Rubaiee, Mohanad, Marsh, John ORCID: https://orcid.org/0000-0002-2851-413X, Kelly, Anthony ORCID: https://orcid.org/0000-0002-6142-1760, Sweeney, Stephen ORCID: https://orcid.org/0000-0001-8561-6071 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Multi-wavelength DFB laser based on a sidewall third-order four phase-shifted sampled Bragg grating with uniform wavelength spacing. Optics Letters, 50(3), pp. 714-717. (doi: 10.1364/OL.542734)

Sun, Yiming, Zhu, Simeng, Yuan, Bocheng, Fan, Yizhe, Al-Rubaiee, Mohanad, Sun, Xiao, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2025) Continuous phase modulation technology based on grating period interval for high grating coupling coefficient and precise wavelength control. Optics Letters, 50(30), pp. 750-753. (doi: 10.1364/OL.543872)

2024

Sun, Yiming, Yuan, Bocheng, Sun, Xiao, Zhu, Simeng, Fan, Yizhe, Al Rubaiee, Mohanad, Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389 (2024) Narrow linewidth distributed feedback lasers utilizing distributed phase shift. Optics Letters, (Accepted for Publication)

Duffy, Dominic A. ORCID: https://orcid.org/0000-0002-7853-5107, Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Fuchs, Christian, Stolz, Wolfgang and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2024) The impact of band bending on the thermal behaviour of gain in Type-II GaAs-based “W”-lasers. Journal of Selected Topics in Quantum Electronics, (doi: 10.1109/JSTQE.2024.3434566) (Early Online Publication)

Masteghin, Mateus G., Murdin, Benedict N., Duffy, Dominic A. ORCID: https://orcid.org/0000-0002-7853-5107, Clowes, Steven K., Cox, David C., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Webb, Roger P. (2024) Advancements and challenges in strained group-IV-based optoelectronic materials stressed by ion beam treatment. Journal of Physics: Condensed Matter, 36(43), 431501. (doi: 10.1088/1361-648X/ad649f) (PMID:39058285)

Hou, Lianping ORCID: https://orcid.org/0000-0001-8405-8389, Yuan, Bocheng, Fan, Yizhe, Sun, Xiao, Sun, Yiming, Zhu, Simeng, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Marsh, John H. ORCID: https://orcid.org/0000-0002-2851-413X (2024) Monolithic dual wavelength DFB lasers based on sidewall gratings for THz/MMW signal generation. Journal of Selected Topics in Quantum Electronics, (doi: 10.1109/JSTQE.2024.3427770) (Early Online Publication)

Ellis, A.R., Duffy, D.A. ORCID: https://orcid.org/0000-0002-7853-5107, Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Acharya, S., Du, W., Yu, S. Q-. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2024) Challenges for room temperature operation of electrically pumped GeSn lasers. Scientific Reports, 14, 10318. (doi: 10.1038/s41598-024-60686-3) (PMID:38705884)

Yu, X. et al. (2024) Effects of phosphorous and antimony doping on thin Ge layers grown on Si. Scientific Reports, 14(1), 7969. (doi: 10.1038/s41598-024-57937-8) (PMID:38575676) (PMCID:PMC10995153)

Yamsiri, A., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Machin, G. (2024) Active Photonic Thermometry Using Quantum Well Heterostructures and Ring Resonators. In: 10th International Temperature Symposium, Anaheim, CA, USA, 03-07 Apr 2023, (Accepted for Publication)

Baltušis, Aidas, Koutsourakis, George, Wood, Sebastian and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2024) Development of time-resolved photoluminescence microscopy of semiconductor materials and devices using a compressed sensing approach. Measurement Science and Technology, 35(1), 015207. (doi: 10.1088/1361-6501/ad044f)

2023

Ren, A. et al. (2023) High-bandwidth perovskite photonic sources on silicon. Nature Photonics, 17(9), pp. 798-805. (doi: 10.1038/s41566-023-01242-9)

Khamari, S. K., Arslan, S., Zink, C., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Crump, P. (2023) Carrier density non-pinning at stripe edges and widened lateral far field due to longitudinal temperature variation in broad-area high power diode lasers. Applied Physics Letters, 122(21), 211101. (doi: 10.1063/5.0149986)

Batool, Z., Hild, K., Marko, Igor ORCID: https://orcid.org/0000-0001-7568-5946, Mohmad, A.R., David, J.P.R., Lu, X., Tiedje, T. and Sweeney, Stephen .J. ORCID: https://orcid.org/0000-0001-8561-6071 (2023) Effect of bismuth incorporation on recombination mechanisms in GaAsBi/GaAs heterostructures. Journal of Materials Science: Materials in Electronics, 34, 480. (doi: 10.1007/s10854-023-09839-0)

2022

Li, B. et al. (2022) Suppressing interfacial recombination with a strong‐interaction surface modulator for efficient inverted perovskite solar cells. Advanced Energy Materials, 12(48), 2202868. (doi: 10.1002/aenm.202202868)

Webb, T. et al. (2022) Correction to: A Multifaceted ferrocene interlayer for highly stable and efficient lithium doped spiro-OMeTAD-based perovskite solar cells (Advanced Energy Materials, (2022), 12, 26, (2200666), 10.1002/aenm.202200666). Advanced Energy Materials, 12(48), 2203565. (doi: 10.1002/aenm.202203565)

Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2022) Temperature-insensitive InP-based Quantum Well Lasers Operating in the O-band for Datacom Applications. In: 2022 28th International Semiconductor Laser Conference (ISLC), Matsue, Japan, 6-19 Oct 2022, ISBN 9784885523359 (doi: 10.23919/ISLC52947.2022.9943464)

Duffy, D.A., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Fuchs, C., Hepp, T., Lehr, J., Volz, K., Stolz, W. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2022) Reduced Temperature-Dependence of Optical Gain in Type-II GaAs-based 'W'-Laser Structures. In: 2022 28th International Semiconductor Laser Conference (ISLC), Matsue, Japan, 6-19 Oct 2022, ISBN 9784885523359 (doi: 10.23919/ISLC52947.2022.9943462)

Webb, T. et al. (2022) A multifaceted ferrocene interlayer for highly stable and efficient lithium doped spiro‐OMeTAD‐based perovskite solar cells. Advanced Energy Materials, 12(26), 2200666. (doi: 10.1002/aenm.202200666)

Braddock, Isabel H. B., Al Sid Cheikh, Maya, Ghosh, Joydip, Mulholland, Roma E., O’Neill, Joseph G., Stolojan, Vlad, Crean, Carol, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Sellin, Paul J. (2022) Formamidinium lead halide perovskite nanocomposite scintillators. Nanomaterials, 12(13), 2141. (doi: 10.3390/nano12132141)

Fitch, Christopher R., Duffy, Dominic A., Ludewig, Peter, Stolz, Wolfgang and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2022) Refractive index dispersion of BGa(As)P alloys in the near-infrared for III-V laser integration on silicon. Journal of Applied Physics, 131(13), 133102. (doi: 10.1063/5.0081069)

Liu, X. et al. (2022) Influence of halide choice on formation of low‐dimensional perovskite interlayer in efficient perovskite solar cells. Energy and Environmental Materials, 5(2), pp. 670-682. (doi: 10.1002/eem2.12321)

Fitch, Christopher R., Baltusis, Aidas, Marko, Igor P., Jung, Daehwan, Norman, Justin C., Bowers, John E. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2022) Carrier recombination properties of low-threshold 1.3 μm quantum dot lasers on silicon. IEEE Journal of Selected Topics in Quantum Electronics, 28(1), 1900210. (doi: 10.1109/JSTQE.2021.3101293)

2021

Eales, T.D., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R., Andrejew, A., Vizbaras, K. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2021) Auger Recombination in Mid-Infrared Quantum Well Lasers. In: 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 21-25 June 2021, ISBN 9781665418768 (doi: 10.1109/CLEO/Europe-EQEC52157.2021.9542167)

Webb, Thomas, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Zhang, Wei (2021) Device architecture engineering: progress toward next generation perovskite solar cells. Advanced Functional Materials, 31(35), 2103121. (doi: 10.1002/adfm.202103121)

Skhunov, M., Solodukhin, A. N., Giannakou, P., Askew, L., Luponosov, Yu. N., Balakirev, D. O., Kalinichenko, N. K., Marko, I. P., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Ponomarenko, S. A. (2021) Pixelated full-colour small molecule semiconductor devices towards artificial retinas. Journal of Materials Chemistry C, 9(18), pp. 5858-5867. (doi: 10.1039/D0TC05383J)

Yavari, M. et al. (2021) A synergistic Cs2CO3 ETL treatment to incorporate Cs cation into perovskite solar cells via two-step scalable fabrication. Journal of Materials Chemistry C, 9(12), pp. 4367-4377. (doi: 10.1039/D0TC05877G)

Fitch, C. R., Read, G. W., Marko, I. P., Duffy, D. A., Cerutti, L., Rodriguez, J.-B., Tournié, E. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2021) Thermal performance of GaInSb quantum well lasers for silicon photonics applications. Applied Physics Letters, 118(10), 101105. (doi: 10.1063/5.0042667)

2020

Sweeney, Stephen ORCID: https://orcid.org/0000-0001-8561-6071 (2020) Selective light transmission as a leading innovation for solar swimming pool covers. Solar Energy, 207, pp. 388-397. (doi: 10.1016/j.solener.2020.06.022)

2019

Eales, T. D. et al. (2019) Ge1-xSnx alloys: consequences of band mixing effects for the evolution of the band gap Γ-character with Sn concentration. Scientific Reports, 9, 14077. (doi: 10.1038/s41598-019-50349-z) (PMID:31575881) (PMCID:PMC6773784)

Sharpe, M.K., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Duffy, D.A., England, J., Schneider, E., Kesaria, M., Federov, V., Clarke, E., Tan, C.H. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2019) A comparative study of epitaxial InGaAsBi/InP structures using Rutherford backscattering spectrometry, X-ray diffraction and photoluminescence techniques. Journal of Applied Physics, 12, 125706. (doi: 10.1063/1.5109653)

2018

Bushell, Z.L., Joseph, R.M., Nattermann, L., Ludewig, P., Volz, K., Keddie, J.L. and Sweeney, S. J. ORCID: https://orcid.org/0000-0001-8561-6071 (2018) Optical functions and critical points of dilute bismide alloys studied by spectroscopic ellipsometry. Journal of Applied Physics, 123(4), 045701. (doi: 10.1063/1.5006974)

2017

Eales, Timothy D., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Ikyo, Barnabas A., Adams, Alfred R., Arafin, Shamsul, Sprengel, Stephan, Amann, Markus-Christian and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2017) Wavelength dependence of efficiency limiting mechanisms in Type-I Mid-Infrared GaInAsSb/GaSb lasers. IEEE Journal of Selected Topics in Quantum Electronics, 23(6), 1500909. (doi: 10.1109/JSTQE.2017.2687823)

Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946 and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2017) Progress toward III-V bismide alloys for near- and midinfrared laser diodes. IEEE Journal of Selected Topics in Quantum Electronics, 23(6), 1501512. (doi: 10.1109/JSTQE.2017.2719403)

Bushell, Z.L., Florescu, M. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2017) High-Q photonic crystal cavities in all-semiconductor photonic crystal heterostructures. Physical Review B, 95, 235303. (doi: 10.1103/PhysRevB.95.235303)

Eales, T., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Ikyo, B.A., Adams, A.R., Vurgaftman, I., Arafin, S., Sprengel, S., Amann, M.-C., Meyer, J.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2017) Auger Recombination in Type I GaInAsSb/GaSb Lasers and Its Variation with Wavelength in the 2-3 μm Range. In: The European Conference on Lasers and Electro-Optics 2017, Munich, Germany, 25–29 Jun 2017, ISBN 9781509067367

Broderick, C. A. et al. (2017) GaAs1−xBix/GaNyAs1−y type-II quantum wells: novel strain-balanced heterostructures for GaAs-based near- and mid-infrared photonics. Scientific Reports, 7, 46371. (doi: 10.1038/srep46371)

Broderick, C.A. et al. (2017) Strain-balanced Type-ii Superlattices on Gaas: Novel Heterostructures for Photonics and Photovoltaics. In: 2017 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Copenhagen, Denmark, 24-28 July 2017, pp. 115-116. ISBN 9781509053230 (doi: 10.1109/NUSOD.2017.8010018)

Maspero, R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Florescu, M. (2017) Unfolding the band structure of GaAsBi. Journal of Physics: Condensed Matter, 29, 075001. (doi: 10.1088/1361-648X/aa50d7) (PMID:28008883)

2016

Nattermann, L. et al. (2016) MOVPE growth and characterization of quaternary Ga(PAsBi)/GaAs alloys for optoelectronic applications. Applied Materials Today, 5, pp. 209-214. (doi: 10.1016/j.apmt.2016.09.018)

Bonmati-Carrion, Maria Angeles, Hild, Konstanze ORCID: https://orcid.org/0009-0008-1593-112X, Isherwood, Cheryl, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Revell, Victoria L., Skene, Debra J., Rol, Maria Angeles and Madrid, Juan Antonio (2016) Relationship between human pupillary light reflex and circadian system status. PLoS ONE, 11(9), e0162476. (doi: 10.1371/journal.pone.0162476) (PMID:27636197) (PMCID:PMC5026360)

Eales, Timothy, Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Ikyo, Barnabas A., Adams, Alf R., Arafin, Shamsul, Sprengel, Stephan, Amann, Markus-C. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2016) Wavelength Dependence of Efficiency Limiting Mechanisms in Type I GaInAsSb/GaSb Lasers Emitting in the Mid-infrared. In: 2016 International Semiconductor Laser Conference (ISLC), Kobe, Japan, 12-15 Sep 2016, ISBN 9784885523069

Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Broderick, Christopher A., Jin, Shirong, Ludewig, Peter, Stolz, Wolfgang, Volz, Kerstin, Rorison, Judy M., O'Reilly, Eoin P. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2016) Optical Gain in GaAsBi/GaAs Quantum Well Diode Lasers. In: 2016 International Semiconductor Laser Conference (ISLC), Kobe, Japan, 12-15 Sep 2016, ISBN 9784885523069

Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Broderick, Christopher A., Jin, Shirong, Ludewig, Peter, Stolz, Wolfgang, Volz, Kerstin, Rorison, Judy M., O'Reilly, Eoin P. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2016) Optical gain in GaAsBi/GaAs quantum well diode lasers. Scientific Reports, 6, 28863. (doi: 10.1038/srep28863) (PMID:27363930) (PMCID:PMC4929443)

Broderick, Christopher A., Rorison, Judy M., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and O'Reilly, Eoin P. (2016) GaAs-based Dilute Bismide Semiconductor Lasers: Theory Vs. Experiment. In: 2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Sydney, NSW, Australia, 11-15 Jul 2016, pp. 209-210. ISBN 9781467386036 (doi: 10.1109/NUSOD.2016.7546999)

Broderick, Christopher A., Xiong, Wanshu, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, O'Reilly, Eoin P. and Rorison, Judy M. (2016) Dilute Bismide Alloys Grown on GaAs and InP Substrates for Improved Near- and Mid-infrared Semiconductor Lasers. In: 2016 18th International Conference on Transparent Optical Networks (ICTON), Trento, Italy, 10-14 Jul 2016, ISBN 9781509014675 (doi: 10.1109/ICTON.2016.7550303)

Ikyo, A.B., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Adams, A.R., Arafin, S., Amann, M.-C. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2016) Temperature stable mid-infrared GaInAsSb/GaSb Vertical Cavity Surface Emitting Lasers (VCSELs). Scientific Reports, 6, 19595. (doi: 10.1038/srep19595) (PMID:26781492) (PMCID:PMC4726019)

2015

Simmons, R.A., Jin, S.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Clowes, S.K. (2015) Enhancement of Rashba interaction in GaAs/AlGaAs quantum wells due to the incorporation of bismuth. Applied Physics Letters, 107(14), 142401. (doi: 10.1063/1.4932122)

Waché, Rémi, Florescu, Marian, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Clowes, Steven K. (2015) Selectively Reflective Transparent Sheets. In: SPIE Nanoscience + Engineering 2015, San Diego, California, USA, 9-13 Aug 2015, ISBN 9781628417128 (doi: 10.1117/12.2188622)

Chai, G. M.T. et al. (2015) Experimental and modelling study of InGaBiAs/InP alloys with up to 5.8% Bi, and with Δso > Eg. Semiconductor Science and Technology, 30, 094015. (doi: 10.1088/0268-1242/30/9/094015)

O'Reilly, Eoin P., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Wang, Shumin and Zide, Joshua M.O. (2015) Dilute bismides and related alloys. Semiconductor Science and Technology, 30, 090301. (doi: 10.1088/0268-1242/30/9/090301)

Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Jin, S.R., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X and Batool, Z. (2015) Bismuth-based semiconductors for mid-infrared photonic devices. In: 2015 IEEE Summer Topicals Meeting Series (SUM), Nassau, Bahamas, 13-15 Jul 2015, pp. 181-182. ISBN 9781479974689 (doi: 10.1109/PHOSST.2015.7248257)

Marko, I.P. et al. (2015) Properties of hybrid MOVPE/MBE grown GaAsBi/GaAs based near-infrared emitting quantum well lasers. Semiconductor Science and Technology, 30, 094008. (doi: 10.1088/0268-1242/30/9/094008)

Thomas, T., Mellor, A., Hylton, N.P., Führer, M., Alonso-Álvarez, D., Braun, A., Ekins-Daukes, N.J., David, J.P.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2015) Requirements for a GaAsBi 1 eV sub-cell in a GaAs-based multi-junction solar cell. Semiconductor Science and Technology, 30, 094010. (doi: 10.1088/0268-1242/30/9/094010)

Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Jha, A. (2015) Preface. In: International Conference on Optical, Optoelectronic and Photonic Materials and Applications (ICOOPMA) 2014, Leeds, UK, 27 Jul-1 Aug 2014, (doi: 10.1088/1742-6596/619/1/011001)

Prins, A.D., Lewis, M.K., Bushell, Z.L., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Liu, S. and Zhang, Y.-H. (2015) Evidence for a defect level above the conduction band edge of InAs/InAsSb type-II superlattices for applications in efficient infrared photodetectors. Applied Physics Letters, 106(17), 171111. (doi: 10.1063/1.4919549)

Read, Graham William, Marko, Igor Pavlovich ORCID: https://orcid.org/0000-0001-7568-5946, Hossain, Nadir and Sweeney, Stephen John ORCID: https://orcid.org/0000-0001-8561-6071 (2015) Physical properties and characteristics of III-V lasers on silicon. IEEE Journal of Selected Topics in Quantum Electronics, 21(6), 1502208. (doi: 10.1109/JSTQE.2015.2424923)

Adams, Alfred R., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Mukherjee, Jayanta, Stolojan, Vlad, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Gocalinska, Agnieszka, Pelucchi, Emanuele, Thomas, Kevin and Corbett, Brian (2015) Semiconductor quantum well lasers with a temperature-insensitive threshold current. IEEE Journal of Selected Topics in Quantum Electronics, 21(6), 1500806. (doi: 10.1109/JSTQE.2015.2413403)

Jha, Animesh and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2015) Optical, optoelectronic and photonic materials and applications. Semiconductor Science and Technology, 30, 040301. (doi: 10.1088/0268-1242/30/4/040301)

Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946 and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2015) Optical and electronic processes in semiconductor materials for device applications. In: Singh, J. and Williams, R.T. (eds.) Excitonic and Photonic Processes in Materials. Series: Springer series in materials science (203). Springer: Singapore, pp. 253-297. ISBN 9789812871312 (doi: 10.1007/978-981-287-131-2_9)

2014

Adams, A.R., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Mukherjee, J., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Gocalinska, A., Pelucchi, E. and Corbett, B. (2014) Semiconductor Quantum Well Lasers with a Temperature Insensitive Threshold Current. In: 2014 International Semiconductor Laser Conference, Palma de Mallorca, Spain, 7-10 Sep 2014, pp. 82-83. ISBN 9781479957217 (doi: 10.1109/ISLC.2014.174)

Sweeney, S.J. et al. (2014) Electrically Injected GaAsBi Quantum Well Lasers. In: 2014 International Semiconductor Laser Conference, Palma de Mallorca, Spain, 07-10 Sep 2014, pp. 80-81. ISBN 9781479957217 (doi: 10.1109/ISLC.2014.173)

Marko, I.P. et al. (2014) Physical properties and optimization of GaBiAs/(Al)GaAs based near-infrared laser diodes grown by MOVPE with up to 4.4% Bi. Journal of Physics D: Applied Physics, 47, 345103. (doi: 10.1088/0022-3727/47/34/345103)

Bushell, Z.L., Ludewig, P., Knaub, N., Batool, Z., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Stolz, W., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Volz, K. (2014) Growth and characterisation of Ga(NAsBi) alloy by metal-organic vapour phase epitaxy. Journal of Crystal Growth, 396, pp. 79-84. (doi: 10.1016/j.jcrysgro.2014.03.038)

Mohmad, A.R., Bastiman, F., Hunter, C.J., Richards, R.D., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Ng, J.S., David, J.P.R. and Majlis, B.Y. (2014) Localization effects and band gap of GaAsBi alloys. Physica Status Solidi B: Basic Solid State Physics, 251(6), pp. 1276-1281. (doi: 10.1002/pssb.201350311)

Jarvis, Scott D., Mukherjee, Jayanta, Perren, Matthew and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2014) Development and characterisation of laser power converters for optical power transfer applications. IET Optoelectronics, 8(2), pp. 64-70. (doi: 10.1049/iet-opt.2013.0066)

Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R., Massé, N.F. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2014) Effect of non-pinned carrier density above threshold in InAs quantum dot and quantum dash lasers. IET Optoelectronics, 8(2), pp. 88-93. (doi: 10.1049/iet-opt.2013.0055)

Chai, G.M.T., Hosea, T.J.C., Fox, N.E., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Ikyo, A.B., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Bachmann, A., Arafin, S. and Amann, M.-C. (2014) Characterization of 2.3 μm GaInAsSb-based vertical-cavity surface-emitting laser structures using photo-modulated reflectance. Journal of Applied Physics, 115(1), 013102. (doi: 10.1063/1.4861146)

2013

Jin, Shirong and Sweeney, Stephen John ORCID: https://orcid.org/0000-0001-8561-6071 (2013) InGaAsBi alloys on InP for efficient near- and mid-infrared light emitting devices. Journal of Applied Physics, 114(21), 213103. (doi: 10.1063/1.4837615)

Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Batool, Z., Jin, S.R., Hossain, N., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Hosea, T.J.C., Lu, X., Tiedje, T. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Auger Recombination Suppression and Band Alignment in GaAsBi/GaAs Heterostructures. In: 31st International Conference on the Physics of Semiconductors (ICPS) 2012, Zurich, Switzerland, 29 Jul–3 Aug 2012, pp. 488-489. ISBN 9780735411944 (doi: 10.1063/1.4848498)

Hossain, N., Hosea, J., Liebich, S., Zimprich, M., Volz, K., Kunert, B., Stolz, W. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Band Structure Properties of (BGa)P Semiconductors for Lattice Matched Integration On (001) Silicon. In: 31st International Conference on the Physics of Semiconductors (ICPS) 2012, Zurich, Switzerland, 29 Jul–3 Aug 2012, pp. 47-48. ISBN 9780735411944 (doi: 10.1063/1.4848278)

Srinivasan, Sudharsanan, Tang, Yongbo, Read, Graham, Hossain, Nadir, Liang, Di, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Bowers, John E. (2013) Hybrid silicon devices for energy-efficient optical transmitters. IEEE Micro, 33(1), pp. 22-31. (doi: 10.1109/MM.2012.89)

Crutchley, Benjamin G., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946 and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) The influence of temperature on the recombination processes in blue and green InGaN LEDs. Physica Status Solidi C, 10(11), pp. 1533-1536. (doi: 10.1002/pssc.201300360)

Ongrai, O., Pearce, J.V., Machin, G. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Self-calibration of a W/Re Thermocouple Using a Miniature Ru-C (1954 °C) Eutectic Cell. In: 9th International Temperature Symposium on Temperature: Its Measurement and Control in Science and Industry, Los Angeles, California, USA, 19–23 Mar 2012, pp. 504-509. ISBN 9780735411784 (doi: 10.1063/1.4821392)

Pal, J., Migliorato, M.A., Li, C.-K., Wu, Y.-R., Crutchley, B.G., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946 and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Enhancement of efficiency of InGaN-based light emitting diodes through strain and piezoelectric field management. Journal of Applied Physics, 114(7), 073104. (doi: 10.1063/1.4818794)

Lester, Luke F., Kovanis, Vassilios, Chan, Nelson Sze-Chun, Miyamoto, Tomoyuki and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Introduction to the issue on semiconductor lasers. IEEE Journal of Selected Topics in Quantum Electronics, 19(4), 0200503. (doi: 10.1109/JSTQE.2013.2272082)

Maspero, R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Florescu, M. (2013) Modelling the Auger Recombination Rates of GaAs(1-x)Bi x Alloys. In: 2013 13th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Vancouver, British Colombia, Canada, 19-22 Aug 2013, pp. 81-82. ISBN 9781467363105 (doi: 10.1109/NUSOD.2013.6633134)

Mukherjee, J., Jarvis, S., Perren, M. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Efficiency limits of laser power converters for optical power transfer applications. Journal of Physics D: Applied Physics, 46, 264006. (doi: 10.1088/0022-3727/46/26/264006)

Ludewig, P. et al. (2013) Electrical injection Ga(AsBi)/(AlGa)As single quantum well laser. Applied Physics Letters, 102(24), 242115. (doi: 10.1063/1.4811736)

Jarvis, Scott, Mukherjee, Jayanta, Perren, Matthew and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) On The Fundamental Efficiency Limits of Photovoltaic Converters for Optical Power Transfer Applications. In: 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), Tampa, Florida, USA, 16-21 Jun 2013, pp. 1031-1035. ISBN 9781479932993 (doi: 10.1109/PVSC.2013.6744317)

Mukherjee, Jayanta, Wulfken, Wolfgang, Hartje, Holger, Steinsiek, Frank, Perren, Matthew and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Demonstration of Eye-safe (1550 nm) Terrestrial Laser Power Beaming at 30 m and Subsequent Conversion into Electrical Power Using Dedicated Photovoltaics. In: 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), Tampa, Florida, USA, 16-21 Jun 2013, pp. 1074-1076. ISBN 9781479932993 (doi: 10.1109/PVSC.2013.6744326)

Sweeney, Stephen John ORCID: https://orcid.org/0000-0001-8561-6071, Hild, Konstanze ORCID: https://orcid.org/0009-0008-1593-112X and Jin, Shirong (2013) The Potential of GaAsBiN for Multi-junction Solar Cells. In: 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC), Tampa, Florida, USA, 16-21 Jun 2013, pp. 2474-2478. ISBN 9781479932993 (doi: 10.1109/PVSC.2013.6744977)

Crutchley, Benjamin G., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, Alf R. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Investigating the Efficiency Limitations of GaN-based Emitters. In: 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, Munich, Germany, 12-16 May 2013, ISBN 9781479905942 (doi: 10.1109/CLEOE-IQEC.2013.6801007)

Ikyo, Barnabas A., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Hild, Konstanze ORCID: https://orcid.org/0009-0008-1593-112X, Adams, Alfred R., Arafin, Shamsul, Amann, Marcus-C. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) The effect of hole leakage and auger recombination on the temperature sensitivity of GaInAsSb/GaSb mid-infrared lasers. In: 2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, Munich, Germany, 12-16 May 2013, ISBN 9781479905942 (doi: 10.1109/cleoe-iqec.2013.6800690)

Aldukhayel, A., Jin, S.R., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Zhang, S.Y., Revin, D.G., Cockburn, J.W. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Investigations of carrier scattering into L-valley in λ=3.5μm InGaAs/AlAs(Sb) quantum cascade lasers using high hydrostatic pressure. Physica Status Solidi B: Basic Solid State Physics, 250(4), pp. 693-697. (doi: 10.1002/pssb.201200848)

Crutchley, B.G., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Pal, J., Migliorato, M.A. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) Optical properties of InGaN-based LEDs investigated using high hydrostatic pressure dependent techniques. Physica Status Solidi B: Basic Solid State Physics, 250(4), pp. 698-702. (doi: 10.1002/pssb.201200514)

Lock, Daren Alfred, Hall, Simon R. G., Prins, A.D., Crutchley, B.G., Kynaston, S. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) LED junction temperature measurement using generated photocurrent. Journal of Display Technology, 9(5), pp. 396-401. (doi: 10.1109/JDT.2013.2251607)

Usman, Muhammad, Broderick, Christopher A., Batool, Zahida, Hild, Konstanze ORCID: https://orcid.org/0009-0008-1593-112X, Hosea, Thomas J. C., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and O'Reilly, Eoin P. (2013) Impact of alloy disorder on the band structure of compressively strained GaBixAs1-x. Physical Review B, 87(11), 115104. (doi: 10.1103/PhysRevB.87.115104)

Hossain, N., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Jin, S.R., Yu, S.-Q., Johnson, S.R., Ding, D., Zhang, Y.-H. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2013) The influence of growth conditions on carrier recombination mechanisms in 1.3 μm GaAsSb/GaAs quantum well lasers. Applied Physics Letters, 102(4), 041106. (doi: 10.1063/1.4789859)

Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Jin, S.R. (2013) Bismide-nitride alloys: promising for efficient light emitting devices in the near- and mid-infrared. Journal of Applied Physics, 113(4), 043110. (doi: doi10.1063/1.4789624)

Batool, Z. et al. (2013) Bismuth-containing III-V semiconductors: epitaxial growth and physical properties. In: Henini, Mohamed (ed.) Molecular Beam Epitaxy: From Research to Mass Production. Elsevier: Amsterdam, pp. 139-158. ISBN 9780123878397 (doi: 10.1016/B978-0-12-387839-7.00007-5)

2012

Hunter, C.J., Bastiman, F., Mohmad, A.R., Richards, R., Ng, J.S., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and David, J.P.R. (2012) Absorption characteristics of GaAs1-xBix/GaAs diodes in the near-infrared. IEEE Photonics Technology Letters, 24(23), pp. 2191-2194. (doi: 10.1109/LPT.2012.2225420)

Marko, I.P. et al. (2012) Temperature and Bi-concentration dependence of the bandgap and spin-orbit splitting in InGaBiAs/InP semiconductors for mid-infrared applications. Applied Physics Letters, 101(22), 221108. (doi: 10.1063/1.4768532)

Mohmad, A.R., Bastiman, F., Ng, J.S., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and David, J.P.R. (2012) Room temperature photoluminescence intensity enhancement in GaAs1-xBix alloys. Physica Status Solidi C, 9(2), pp. 259-261. (doi: 10.1002/pssc.201100256)

Reed, G.T. et al. (2012) High performance silicon optical modulators. In: Photonics Asia 2012: Nanophotonics and Micro/Nano Optics, Beijing, China, 5-7 Nov 2012, ISBN 9780819493194 (doi: 10.1117/12.2001296)

Hosea, T.J.C. et al. (2012) InGaBiAs/InP Semiconductors for Mid-infrared Applications: Dependence of Bandgap and Spin-orbit Splitting on Temperature and Bismuth Content. In: 2012 IEEE 3rd International Conference on Photonics, Pulau Pinang, Malaysia, 1-3 Oct 2012, pp. 154-158. ISBN 9781467314633 (doi: 10.1109/ICP.2012.6379872)

Tan, S.L. et al. (2012) Improved optoelectronic properties of rapid thermally annealed dilute nitride GaInNAs photodetectors. Journal of Electronic Materials, 41(12), pp. 3393-3401. (doi: 10.1007/s11664-012-2245-9)

Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) Bismide alloys for photonic devices: potential and progress. In: IEEE Photonics Conference 2012, Burlingame, CA, USA, 23-27 Sep 2012, pp. 602-603. ISBN 9781457707315 (doi: 10.1109/IPCon.2012.6358765)

Broderick, C.A., Usman, M., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and O'Reilly, E.P. (2012) Band engineering in dilute nitride and bismide semiconductor lasers. Semiconductor Science and Technology, 27(9), 094011. (doi: 10.1088/0268-1242/27/9/094011)

Blume, G., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Hosea, T.J.C., Yu, S.-Q., Chaparro, S.A., Samal, N., Johnson, S.R., Zhang, Y.-H. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) Cavity mode gain alignment in GaAsSb-based near-infrared vertical cavity lasers studied by spectroscopy and device measurements. Journal of Applied Physics, 112(3), 033108. (doi: 10.1063/1.4744985)

Mohmad, A.R., Bastiman, F., Hunter, C.J., Richards, R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Ng, J.S. and David, J.P.R. (2012) Effects of rapid thermal annealing on GaAs1-xBix alloys. Applied Physics Letters, 101(1), 012106. (doi: 10.1063/1.4731784)

Hossain, N., Jin, S.R., Liebich, S., Zimprich, M., Volz, K., Kunert, B., Stolz, W. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) Efficiency-limiting processes in Ga(NAsP)/GaP quantum well lasers. Applied Physics Letters, 101(1), 011107. (doi: 10.1063/1.4733312)

Batool, Z., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Hosea, T.J.C., Lu, X., Tiedje, T. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) The electronic band structure of GaBiAs/GaAs layers: influence of strain and band anti-crossing. Journal of Applied Physics, 111(11), 113108. (doi: 10.1063/1.4728028)

Buaprathoom, S., Pedley, S., Prins, A.D. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) High Concentration Measurement of Mixed Particle Suspensions Using Simple Multi-angle Light Scattering System. In: SPIE Photonics Europe 2012, Brussels, Belgium, 16-19 Apr 2012, ISBN 9780819491312 (doi: 10.1117/12.922287)

Buaprathoom, S., Pedley, S. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) Dual Wavelength Multiple-angle Light Scattering System for Cryptosporidium Detection. In: SPIE Photonics Europe 2012, Brussels, Belgium, 16-19 Apr 2012, ISBN 9780819491190 (doi: 10.1117/12.921661)

Bastiman, F., Cullis, A.G., David, J.P.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) Bi incorporation in GaAs(100)-2×1 and 4×3 reconstructions investigated by RHEED and STM. Journal of Crystal Growth, 341(1), pp. 19-23. (doi: 10.1016/j.jcrysgro.2011.12.058)

Hossain, N., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Jin, S.R., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Lewis, R.B., Beaton, D.A. and Tiedje, T. (2012) Recombination mechanisms and band alignment of GaAs1-xBi x/GaAs light emitting diodes. Applied Physics Letters, 100(5), 051105. (doi: 10.1063/1.3681139)

Bastiman, F., Mohmad, A.R.B., Ng, J.S., David, J.P.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2012) Non-stoichiometric GaAsBi/GaAs (100) molecular beam epitaxy growth. Journal of Crystal Growth, 338(1), pp. 57-61. (doi: 10.1016/j.jcrysgro.2011.07.036)

Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Zhang, Yaping and Goodyer, Ian D. (2012) The development of a novel monolithic spectrometer chip concept. In: SPIE OPTO 2012: Integrated Optics: Devices, Materials, and Technologies XVI, San Francisco, California, USA, 25-26 Jan 2012, ISBN 9780819489074 (doi: 10.1117/12.907118)

2011

Lever, L. et al. (2011) Modulation of the absorption coefficient at 1:3μm in Ge/SiGe multiple quantum well heterostructures on silicon. Optics Letters, 36(21), pp. 4158-4160. (doi: 10.1364/OL.36.004158) (PMID:22048350)

Cheetham, K.J., Krier, A., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Aldukhayel, A. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2011) Direct evidence for suppression of Auger recombination in GaInAsSbP/InAs mid-infrared light-emitting diodes. Applied Physics Letters, 99(14), 141110. (doi: 10.1063/1.3646910)

Hossain, Nadir, Hosea, T.J.C., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Liebich, Sven, Zimprich, Martin, Volz, Kerstin, Kunert, Bernardette and Stolz, Wolfgang (2011) Band structure properties of novel BxGa1−xP alloys for silicon integration. Journal of Applied Physics, 110(6), 063101. (doi: 10.1063/1.3630018)

Hossain, N., Jin, S.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Liebich, S., Ludewig, P., Zimprich, M., Volz, K., Kunert, B. and Stolz, W. (2011) Physical Properties of Monolithically Integrated Ga(NAsP)/(BGa)P QW Lasers on Silicon. In: IEEE International Conference on Group IV Photonics, GFP 2011, London, UK, 14-16 Sep 2011, pp. 148-150. ISBN 9781424483389 (doi: 10.1109/GROUP4.2011.6053745)

Lever, L. et al. (2011) Strain Engineering of the Electroabsorption Response in Ge/SiGe Multiple Quantum Well Heterostructures. In: 8th IEEE International Conference on Group IV Photonics, GFP 2011, London, UK, 4-16 Sep 2011, pp. 107-108. ISBN 9781424483389 (doi: 10.1109/GROUP4.2011.6053731)

Ongrai, O., Pearce, J.V., MacHin, G. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2011) A miniature high-temperature fixed point for self-validation of type C thermocouples. Measurement Science and Technology, 22(10), 105103. (doi: 10.1088/0957-0233/22/10/105103)

Liebich, S. et al. (2011) Laser operation of Ga(NAsP) lattice-matched to (001) silicon substrate. Applied Physics Letters, 99(7), 071109. (doi: 10.1063/1.3624927)

Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Johnson, S.R., Yu, S.-Q., Zhang, Y.-H. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2011) Influence of de-tuning and non-radiative recombination on the temperature dependence of 1.3 μm GaAsSb/GaAs vertical cavity surface emitting lasers. Applied Physics Letters, 99(7), 071110. (doi: 10.1063/1.3625938)

Hossain, N., Sweeney, S.P. ORCID: https://orcid.org/0000-0001-8561-6071, Rogowsky, S., Ostendorf, R., Wagner, J., Liebich, S., Zimprich, M., Volz, K., Kunert, B. and Stolz, W. (2011) Reduced threshold current dilute nitride Ga(NAsP)/GaP quantum well lasers grown by MOVPE. Electronics Letters, 47(16), pp. 931-933. (doi: 10.1049/el.2011.1927)

Mohmad, A.R., Bastiman, F., Hunter, C.J., Ng, J.S., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and David, J.P.R. (2011) The effect of Bi composition to the optical quality of GaAs1−xBix. Applied Physics Letters, 99(4), 042107. (doi: 10.1063/1.3617461)

Ikyo, B.A., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Canedy, C.L., Vurgaftman, I., Kim, C.S., Kim, M., Bewley, W.W. and Meyer, J.R. (2011) Temperature dependence of 4.1 μm mid-infrared type II "w" interband cascade lasers. Applied Physics Letters, 99(2), 021102. (doi: 10.1063/1.3606533)

Tan, S. L. et al. (2011) GaInNAsSb/GaAs photodiodes for long-wavelength applications. IEEE Electron Device Letters, 32(7), pp. 919-921. (doi: 10.1109/LED.2011.2145351)

Kunert, B., Liebich, S., Zimprich, M., Beyer, A., Ziegler, S., Volz, K., Stolz, W., Hossain, N., Jin, S.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2011) Electrical Pumped Integrated III/V Laser Lattice-matched to a Silicon Substrate. In: 69th Device Research Conference, DRC 2011, Santa Barbara, California, USA, 20-22 Jun 2011, pp. 257-258. ISBN 9781612842417 (doi: 10.1109/DRC.2011.5994521)

Sweeney, S. ORCID: https://orcid.org/0000-0001-8561-6071 (2011) Editorial: Selected papers from the Semiconductor and Integrated Optoelectronics (SIOE'10) Conference. IET Optoelectronics, 5(3), p. 99. (doi: 10.1049/iet-opt.2011.9057)

Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Batool, Z., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Jin, S.R. and Hosea, T.J.C. (2011) The Potential Role of Bismide Alloys in Future Photonic Devices. In: 2011 13th International Conference on Transparent Optical Networks, Stockholm, Sweden, 26-30 Jun 2011, ISBN 9781457708800 (doi: 10.1109/ICTON.2011.5970829)

Mohmad, A.R., Bastiman, F., Ng, J.S., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and David, J.P.R. (2011) Photoluminescence investigation of high quality GaAs1−xBix on GaAs. Applied Physics Letters, 98(12), 122107. (doi: 10.1063/1.3565244)

2010

Ongrai, O., Pearce, J.V., Machin, G. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Miniature Co-C eutectic fixed-point cells for self-validating thermocouples. Measurement Science and Technology, 22(1), 015104. (doi: 10.1088/0957-0233/22/1/015104)

Hossain, N., Chamings, J., Jin, S.R., Sweeney, .J. ORCID: https://orcid.org/0000-0001-8561-6071, Liebich, S., Reinhard, S., Volz, K., Kunert, B. and Stolz, W. (2010) Recombination and Loss Mechanisms in GaNAsP/GaP QW Lasers. In: 2010 Photonics Global Conference, Orchard, Singapore, 14-16 Dec 2010, ISBN 9781424498819 (doi: 10.1109/PGC.2010.5706060)

Hossain, N., Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Jin, S.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Yu, S.-Q., Johnson, S.R., Ding, D. and Zhang, Y.-H. (2010) Influence Of Device Structures on Carrier Recombination in GaAsSb/GaAs QW Lasers. In: 2010 Photonics Global Conference, Orchard, Singapore, 14-16 Dec 2010, ISBN 9781424498819 (doi: 10.1109/PGC.2010.5706061)

Hossain, Nadir, Hild, Konstanze ORCID: https://orcid.org/0009-0008-1593-112X, Jin, Shirong, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Yu, Shui-Qing, Johnson, Shane R., Ding, Ding and Zhang, Yong-Hang (2010) Role of Growth Temperature on the Physical Characteristics of GaAsSb/GaAs QW Lasers. In: 2010 23rd Annual Meeting of the IEEE Photonics Society, Denver, Colorado, USA, 7-11 Nov 2010, pp. 59-60. ISBN 97814244-53689 (doi: 10.1109/PHOTONICS.2010.5698756)

Hossain, Nadir, Jin, Shirong R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Liebich, Sven, Reinhard, Stefan, Volz, Kerstin, Kunert, Bernardette and Stolz, Wolfgang (2010) Physical Properties of Ga(NAsP)/GaP QW Lasers Grown by MOVPE. In: 2010 23rd Annual Meeting of the IEEE Photonics Society, Denver, CO, USA, 7-11 Nov2010, pp. 65-66. ISBN 9781424453689 (doi: 10.1109/PHOTONICS.2010.5698759)

Sayid, Sayid A., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Barrios, Pedro and Poole, Philip J. (2010) Efficiency limiting processes in 1.55 μm InAs/InP-based quantum dots lasers. Applied Physics Letters, 97(16), 161104. (doi: 10.1063/1.3504253)

Hossain, Nadir, Jin, Shirong R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Liebich, Sven, Ludewig, Peter, Zimprich, Martin, Kunert, Bernardette, Volz, Kerstin and Stolz, Wolfgang (2010) On the Temperature Dependence of Monolithically Integrated Ga(NAsP)/(BGa)P/Si QW Lasers. In: Frontiers in Optics 2010/Laser Science XXVI, Rochester, NY, USA, 24–28 Oct 2010, (doi: 10.1364/FIO.2010.FWD6)

Crutchley, Benjamin G., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, Alf R. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Efficiency Limitations of Green InGaN LEDs and Laser Diodes. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 27-28. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642770)

Hossain, Nadir, Jin, Shirong R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Liebich, Sven, Ludewig, Peter, Zimprich, Martin, Kunert, Bernardette, Volz, Kerstin and Stolz, Wolfgang (2010) Lasing Properties of Monolithically Integrated Ga(NAsP)/(BGa)P QW Lasers on a Silicon Substrate Grown by MOVPE. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 109-110. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642727)

Ikyo, Barnabas A., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, Alf R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Canedy, Chadwick L., Vurgaftman, Igor, Kim, Chul Soo, Kim, Mijin, Bewley, William W. and Meyer, Jerry R. (2010) Temperature Sensitivity of Mid-infrared Type II "W" Interband Cascade Lasers (ICL) Emitting at 4.1μm at Room Temperature. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 41-42. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642761)

Liebich, S., Zimprich, M., Ludewig, P., Beyer, A., Volz, K., Stolz, W., Kunert, B., Hossain, N., Jin, S.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2010) MOVPE Growth and Characterization of Ga(NAsP) Laser Structures Monolithically Integrated on Si (001) Substrates. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 143-144. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642712)

Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Aldukhayel, A.M., Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Teissier, R., Baranov, A.N. and Tomić, S. (2010) Physical Properties of Short Wavelength 2.6μm InAs/AlSb-based Quantum Cascade Lasers. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 95-96. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642736)

Sayid, Sayid A., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, Alfred R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Barrios, Pedro and Poole, Philip (2010) Thermal Behavior of 1.55 μm (100) InAs/InP-based Quantum Dot Lasers. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 75-76. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642746)

Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Bismide-alloys For Higher Efficiency Infrared Semiconductor Lasers. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 111-112. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642728)

Ongrai, O., Pearce, J.V., Machin, G. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Comparative study of Pt/Pd and Pt-Rh/Pt thermocouples. International Journal of Thermophysics, 31(8-9), pp. 1506-1516. (doi: 10.1007/s10765-010-0782-0)

Tan, S.L., Tan, L.J.J., Goh, Y.L., Zhang, S., Ng, J.S., David, J.P.R., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Allam, J., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Adams, A.R. (2010) Reduction of Dark Current and Unintentional Background Doping in InGaAsN Photodetectors by Ex Situ Annealing. In: SPIE Optical Sensing and Detection 2010, Brussels, Belgium, 12-15 Apr 2010, ISBN 9780819481993 (doi: 10.1117/12.853912)

Sayid, Sayid Ally, Marko, Igor Pavlovich ORCID: https://orcid.org/0000-0001-7568-5946, Cannard, Paul J., Chen, Xin, Rivers, Lesley J., Lealman, Ian F. and Sweeney, Stephen John ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Thermal Characteristics of 1.55 μm InGaAlAs Quantum Well Buried Heterostructure Lasers. IEEE Journal of Quantum Electronics, 46(5), pp. 700-705. (doi: 10.1109/JQE.2009.2039117)

Pearce, J.V., Ongrai, O., MacHin, G. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Self-validating thermocouples based on high temperature fixed points. Metrologia, 47(1), L1-L3. (doi: 10.1088/0026-1394/47/1/L01)

Hossain, N., Jin, S.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Yu, S.-Q., Johnson, S.R., Ding, D. and Zhang, Y.-H. (2010) Improved Performance of GaAsSb/GaAs SQW Lasers. In: SPIE OPTO, 2010, San Francisco, California USA, 25-28 Jan 2010, ISBN 9780819480125 (doi: 10.1117/12.842253)

Ng, J.S., Tan, S.L., Goh, Y.L., Tan, C.H., David, J.P.R., Allam, J., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Adams, A.R. (2010) InGaAsN as Absorber in APDs for 1.3 Micron Wavelength Applications. In: 22nd International Conference on Indium Phosphide and Related Materials (IPRM), Takamatsu, Japan, 31 May-4 Jun 2010, pp. 187-190. ISBN 9781424459223 (doi: 10.1109/ICIPRM.2010.5516060)

Sayid, Sayid A., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Poole, Philip (2010) Temperature Sensitivity of 1.55μm (100) InAs/InP-based Quantum Dot Lasers. In: 22nd International Conference on Indium Phosphide and Related Materials (IPRM), Takamatsu, Japan, 31 May-4 Jun 2010, pp. 23-24. ISBN 9781424459223 (doi: 10.1109/ICIPRM.2010.5516172)

Sayid, Sayid Ally, Marko, Igor Pavlovich ORCID: https://orcid.org/0000-0001-7568-5946, Cannard, Paul J., Chen, Xin, Rivers, Lelsey J., Lealman, Ian F. and Sweeney, Stephen John ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Thermal Performance of 1.55μm InGaAlAs Quantum Well Buried Heterostructure Lasers. In: 22nd International Conference on Indium Phosphide and Related Materials (IPRM), Takamatsu, Japan, 31 May-4 Jun 2010, pp. 265-268. ISBN 9781424459223 (doi: 10.1109/ICIPRM.2010.5516088)

2009

Ikyo, A.B., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Bachmann, A., Kashani-Shirazi, K. and Amann, M.-C. (2009) Gain peak-cavity mode alignment optimisation in buried tunnel junction mid-infrared GaSb vertical cavity surface emitting lasers using hydrostatic pressure. IET Optoelectronics, 3(6), pp. 305-309. (doi: 10.1049/iet-opt.2009.0045)

Tan, L.J.J. et al. (2009) Dark current mechanisms in InxGa1-xAs1-yNy. In: 2009 IEEE LEOS Annual Meeting Conference Proceedings, Belek-Antalya, Turkey, 4-8 Oct 2009, pp. 233-234. ISBN 9781424436804 (doi: 10.1109/LEOS.2009.5343290)

Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Ikyo, A.B., Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Bachmann, A., Kashani-Shirazi, K. and Amann, M.-C. (2009) Band-structure and gain-cavity tuning of 2.4-μm GaSb buried tunnel junction VCSELs. In: CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, Munich, Germany, 14-19 June 2009, ISBN 9781424440795 (doi: 10.1109/CLEOE-EQEC.2009.5193611)

Crowley, Mark Thomas, Marko, Igor Pavlovich ORCID: https://orcid.org/0000-0001-7568-5946, Massé, Nicolas F., Andreev, Aleksey D., Tomic, Stanko, Sweeney, Stephen John ORCID: https://orcid.org/0000-0001-8561-6071, O'Reilly, Eoin P. and Adams, Alfred R. (2009) The importance of recombination via excited states in inAs/GaAs 1.3μm quantum-dot lasers. IEEE Journal of Selected Topics in Quantum Electronics, 15(3), pp. 799-807. (doi: 10.1109/JSTQE.2009.2015679)

Fox, Natasha E., Sharma, Tarun K., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Hosea, T.J.C. (2009) Room temperature characterisation of InGaAlAs quantum well laser structures using electro-modulated reflectance and surface photovoltage spectroscopy. Physica Status Solidi A: Applications and Materials Science, 206(5), pp. 796-802. (doi: 10.1002/pssa.200881407)

Chamings, James, Ahmed, Sucheta, Adams, Alfred R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Odnoblyudov, Vladimir A., Tu, Charles W., Kunert, Bernardette and Stolz, Wolfgang (2009) Band anti-crossing and carrier recombination in dilute nitride phosphide based lasers and light emitting diodes. Physica Status Solidi B: Basic Solid State Physics, 246(3), pp. 527-531. (doi: 10.1002/pssb.200880537)

Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, Alfred R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Teissier, Roland, Baranov, Alexei N. and Tomić, Stanko (2009) Evidence of carrier leakage into the L-valley in InAs-based quantum cascade lasers under high hydrostatic pressure. Physica Status Solidi B: Basic Solid State Physics, 246(3), pp. 512-515. (doi: 10.1002/pssb.200880501)

Adams, A.R., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Teissier, R., Baranov, A.N. and Tomić, S. (2009) The Effect of Hydrostatic Pressure on the Operation of Quantum Cascade Lasers. In: SPIE Quantum Cascade Lasers and Applications I, San Jose, USA, 25-28 Jan 2009, (doi: 10.1117/12.814322)

Coote, J., Reddy, S. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2009) The development of a compact free spectral range semiconductor laser biosensor. Journal of the European Optical Society, 4, 09013. (doi: 10.2971/jeos.2009.09013)

Massé, N.F., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2009) Temperature insensitive quantum dot lasers: Are we really there yet? Journal of Materials Science: Materials in Electronics, 20(SUPPL.), pp. 272-276. (doi: 10.1007/s10854-008-9574-8)

Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 and Krause, Steffi (2009) Editorial: Selected papers from the second international conference on optical, optoelectronic and photonic materials and applications, 2007. Journal of Materials Science: Materials in Electronics, 20(1-2), s1-s2. (doi: 10.1007/s10854-008-9740-z)

2008

Sharma, T.K., Hosea, T.J.C., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Tang, X. (2008) An accurate determination of the electronic transitions of InAs/InGaAs/InP quantum dots for midinfrared lasers using simultaneous complementary spectroscopic techniques. Journal of Applied Physics, 104(8), 083109. (doi: 10.1063/1.3005903)

Chamings, J., Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Kunert, B., Volz, K. and Stolz, W. (2008) Temperature dependence and physical properties of Ga(NAsP)/GaP semiconductor lasers. Applied Physics Letters, 93(10), 101108. (doi: 10.1063/1.2975845)

Chamings, J., Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Kunert, B., Volz, K. and Stolz, W. (2008) Thermal properties of Silicon compatible GaNAsP SQW lasers. In: 2008 IEEE 21st International Semiconductor Laser Conference, Sorrento, Italy, 14-18 Sep 2008, pp. 61-62. ISBN 9781424417827 (doi: 10.1109/ISLC.2008.4636009)

Crowley, M.T., Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Masse, N.F., Andreev, A.D., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, O'Reilly, E.P. and Adams, A.R. (2008) The importance of recombination via excited states in InAs/GaAs 1.3μm quantum dot lasers. In: 2008 IEEE 21st International Semiconductor Laser Conference, Sorrento, Italy, 14-18 Sep 2008, pp. 117-118. ISBN 9781424417827 (doi: 10.1109/ISLC.2008.4636037)

Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Teissier, R., Baranov, A.N. and Tomic, S. (2008) Gamma-L scattering in InAs-based quantum cascade lasers studied using high hydrostatic pressure. In: 2008 IEEE 21st International Semiconductor Laser Conference, Sorrento, Italy, 14-18 Sep 2008, pp. 47-48. ISBN 9781424417827 (doi: 10.1109/ISLC.2008.4636002)

Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Yu, S.-Q., Johnson, S.R. and Zhang, Y.-H. (2008) Thermal characteristics of 1.3μm GaAsSb/GaAs-based edge- and surface-emitting lasers. In: 2008 IEEE 21st International Semiconductor Laser Conference, Sorrento, Italy, 14-18 Sep 2008, pp. 83-84. ISBN 9781424417827 (doi: 10.1109/ISLC.2008.4636020)

Green, B.C., Yu, S.-Q., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Ding, D. and Zhang, Y.-H. (2008) Novel heterostructure design for increased spectral width of superluminescent diodes and dual-wavelength laser diodes. In: 2008 Device Research Conference, Santa Barbara, California, USA, 23-25 Jun 2008, pp. 309-310. ISBN 9781424419425 (doi: 10.1109/DRC.2008.4800853)

Tu, C.W., Odnoblyudov, V.A., Chamings, J., Ahmed, S., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 and Keogh, D.M. (2008) Materials and light-emitting diode properties of dilute-nitride GaNP/GaP heterostructures. In: 2008 Device Research Conference, Santa Barbara, California, USA, 23-25 Jun 2008, pp. 299-300. ISBN 9781424419425 (doi: 10.1109/DRC.2008.4800848)

Lealman, I., Dosanjh, S., Rivers, L., O'Brien, S., Cannard, P., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946 and Rushworth, S. (2008) Reliable 1550nm SI BH lasers fabricated using an improved Ru precursor. In: 20th International Conference on Indium Phosphide and Related Materials, Versailles, France, 25-29 May 2008, ISBN 9781424422586 (doi: 10.1109/ICIPRM.2008.4702913)

Soong, W.M., Ng, J.S., Steer, M.J., Hopkinson, M., David, J.P.R., Chamings, J., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Adams, A.R. and Allam, J. (2008) Dark current mechanisms in bulk GaInNAs photodiodes. In: 20th International Conference on Indium Phosphide and Related Materials, Versailles, France, 25-29 May 2008, ISBN 9781424422586 (doi: 10.1109/ICIPRM.2008.4702987)

Chamings, J., Ahmed, S., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Odnoblyudov, V.A. and Tu, C.W. (2008) Physical properties and efficiency of GaNP light emitting diodes. Applied Physics Letters, 92(2), 021101. (doi: 10.1063/1.2830696)

2007

Coote, J., Reddy, S. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2007) Optimisation of distributed feedback laser biosensors. IET Optoelectronics, 1(6), pp. 266-271. (doi: 10.1049/iet-opt:20070053)

Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, A.R., Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Whitbread, N.D., Ward, A.J., Asplin, B. and Robbins, D.J. (2007) The influence of carrier density non-pinning on the output power of 1.55 μm lasers at high temperature. In: 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, Munich, Germany, 17-22 Jun 2007, ISBN 9781424409303 (doi: 10.1109/CLEOE-IQEC.2007.4385984)

Bückers, C. et al. (2007) Microscopic electroabsorption line shape analysis for Ga (AsSb) / GaAs heterostructures. Journal of Applied Physics, 101(3), 033118. (doi: 10.1063/1.2433715)

Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071, Marko, I.P. ORCID: https://orcid.org/0000-0001-7568-5946, Jin, S.R., Johnson, S.R., Chaparro, S.A., Yu, S. and Zhang, Y.-H. (2007) Temperature and pressure dependence of carrier recombination processes in GaAsSb/GaAs quantum well lasers. Physica Status Solidi B: Basic Solid State Physics, 244(1), pp. 197-202. (doi: 10.1002/pssb.200672571)

Marko, I.P. et al. (2007) Band gap dependence of the recombination processes in InAs/GaAs quantum dots studied using hydrostatic pressure. Physica Status Solidi B: Basic Solid State Physics, 244(1), pp. 82-86. (doi: 10.1002/pssb.200672544)

Coote, J. and Sweeney, S.J. ORCID: https://orcid.org/0000-0001-8561-6071 (2007) Semiconductor lasers as integrated optical biosensors: Sensitivity optimisation. Journal of Physics: Conference Series, 76(1), 012046. (doi: 10.1088/1742-6596/76/1/012046)

2006

Hild, K. ORCID: https://orcid.org/0009-0008-1593-112X, Sweeney, .J. ORCID: https://orcid.org/0000-0001-8561-6071, Jin, S.R., Healy, S.B., O'Reilly, E.P., Johnson, S.R., Wang, J.-B. and Zhang, Y.-H. (2006) Band alignment and carrier recombination in GaAsSb/GaAs quantum wells. In: 28th International Conference on the Physics of Semiconductors, Vienna, Austria, 24-28 July 2006, pp. 1431-1432. ISBN 9780735403970 (doi: 10.1063/1.2730443)

This list was generated on Sun Jun 15 05:53:52 2025 BST.

Jump to: Articles | Book Sections | Conference Proceedings

Number of items: 183.

Articles

Yu, X. et al. (2024) Effects of phosphorous and antimony doping on thin Ge layers grown on Si. Scientific Reports, 14(1), 7969. (doi: 10.1038/s41598-024-57937-8) (PMID:38575676) (PMCID:PMC10995153)

Ren, A. et al. (2023) High-bandwidth perovskite photonic sources on silicon. Nature Photonics, 17(9), pp. 798-805. (doi: 10.1038/s41566-023-01242-9)

Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Broderick, Christopher A., Jin, Shirong, Ludewig, Peter, Stolz, Wolfgang, Volz, Kerstin, Rorison, Judy M., O'Reilly, Eoin P. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2016) Optical gain in GaAsBi/GaAs quantum well diode lasers. Scientific Reports, 6, 28863. (doi: 10.1038/srep28863) (PMID:27363930) (PMCID:PMC4929443)

Ludewig, P. et al. (2013) Electrical injection Ga(AsBi)/(AlGa)As single quantum well laser. Applied Physics Letters, 102(24), 242115. (doi: 10.1063/1.4811736)

Liebich, S. et al. (2011) Laser operation of Ga(NAsP) lattice-matched to (001) silicon substrate. Applied Physics Letters, 99(7), 071109. (doi: 10.1063/1.3624927)

Tan, S. L. et al. (2011) GaInNAsSb/GaAs photodiodes for long-wavelength applications. IEEE Electron Device Letters, 32(7), pp. 919-921. (doi: 10.1109/LED.2011.2145351)

Bückers, C. et al. (2007) Microscopic electroabsorption line shape analysis for Ga (AsSb) / GaAs heterostructures. Journal of Applied Physics, 101(3), 033118. (doi: 10.1063/1.2433715)

Book Sections

Conference Proceedings

Crutchley, Benjamin G., Marko, Igor P. ORCID: https://orcid.org/0000-0001-7568-5946, Adams, Alf R. and Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071 (2010) Efficiency Limitations of Green InGaN LEDs and Laser Diodes. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 27-28. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642770)

Hossain, Nadir, Jin, Shirong R., Sweeney, Stephen J. ORCID: https://orcid.org/0000-0001-8561-6071, Liebich, Sven, Ludewig, Peter, Zimprich, Martin, Kunert, Bernardette, Volz, Kerstin and Stolz, Wolfgang (2010) Lasing Properties of Monolithically Integrated Ga(NAsP)/(BGa)P QW Lasers on a Silicon Substrate Grown by MOVPE. In: 22nd IEEE International Semiconductor Laser Conference, Kyoto, Japan, 26-30 Sep 2010, pp. 109-110. ISBN 9781424456840 (doi: 10.1109/ISLC.2010.5642727)

This list was generated on Sun Jun 15 05:53:52 2025 BST.

Supervision

Stephen has supervised over 40 successful PhD students and post-doctoral researchers.

Currently available PhD projects. Contact me if interested.

Project opportunities are also generally available in the following areas:

Quantitative photoluminescence imaging of compound semiconductors using compressed sensing techniques
Quantum dots in photonic crystal cavities for single-photon applications
Active photonic thermometry
Advanced silicon based light sources for photonics devices
Developing novel photonic devices for infrared applications
Perovskite materials for photonic applications
Next Generation of Electronic and Photonic Devices by Ion Beam (Implantation) Induced Strain
Photonic Crystal Surface Emitting Lasers for near- and mid-infrared applications
Optical wireless power beaming technologies for terrestrial and space applications
High efficiency semiconductor lasers for telecomms and datacomms applications

Current PhD project students:

Baltusis, Aidas

Quantitative Photoluminescence Imaging of Compound Semiconductors
Chen, Qixuan (Terry)

Ultimate Temperature Stability in Semiconductor Lasers (PIADS, with Seagate)

Ellis, Aneirin

Novel Short-Wave Mid-Infrared Devices for Si Photonics Applications
Jack, Lilidh

Chip-scale Photonic Thermometry (PIADS, with NPL)

Liu, Jingzhao

GaAs Based Photonic Crystal Surface Emitting Lasers
Robinson, Matthew

Short wavelength Photonic Crystal Surface Emitting Lasers
Watson, Che

Membrane photonic crystal lasers: Towards compact, high performance nano-scale lasers (PIADS)

Zhao, Xingyu

Visible Photonic Integrated Circuits (PICs)
Ingledew, Jamie

Photonic and Quantum Thermometry (with NPL)

Al Rubaiee, Mohanad Jamal Abbas
Laser sources and semiconductor optical amplifiers for free-space orbital angular momentum communication systems
Munro, Connor
Quantum Cascade PCSELs
Yamsiri, Anoma
Towards an active photonic thermometer

Former PhD students:

Name	Project	Collaborators	Destination
Dr Jamie McMillan	Metrology of infrared thermal imaging systems for space applications	NPL	NPL
Dr Dominic Duffy	Type-II and bismide alloys for high performance mid-infrared lasers	Univ. Marburg, Germany	ZiNIR Ltd.
Dr Chutima Termsuk	Silica based fibres for radiation dosimetry
Dr Chris Fitch	Novel integrated photonic devices on silicon	UC Santa Barbara, Univ. Marburg	Retired
Dr Matthew Sharpe	Novel semiconductors and nanocrystals for photodetectors	Univ. Sheffield, Univ. Marburg	National Ion Beam Centre (UK)
Dr Timothy Eales	Novel Mid-infrared Laser Materials & Devices	NRL, WSI-Munich, Univ. Arkansas	HM Government (UK)
Dr Zoe Bushell	Nanocavity Photonic Crystal Lasers	Univ. Marburg	National Trust (UK)
Dr Scott Jarvis	High Efficiency Laser Power Converters for Power Beaming	Airbus	QinetiQ
Dr Graham Read	Silicon lasers for photonic integration	UCSB, Univ. Marburg, Univ. Montpellier II	Freelance technical Consultant
Dr Abdullah Aldukhayel	Photonic devices for security and sensing	NTU, Singapore Univ. Sheffield	Assistant Professor, Saudi Arabia
Dr Zahida Batool	Spectroscopy of novel photonic materials	UBC, Canada	Assistant Professor, Pakistan
Dr Michael Lewis	Quantum nanostructures for mid-infrared applications	QinetiQ	Head of Physics, George Abbott School, Guildford
Dr Nadir Hossain	Lasers for optical computing and communications	Univ. Marburg Arizona State Univ.	Researcher, University of Montreal
Dr Somporn Buaprathoom	Nanophotonics for rapid water quality assessment	Faculty of Health and Medical Sciences (Dr. Steve Pedley)	Teaching College, Thailand
Dr Ben Crutchley	Efficiency droop in GaN-based solid-state lighting	Osram & Univ. Cambridge	1E3 Robotics UK
Dr Sayid Sayid	Efficient, high performance devices for optical fibre comms and related applications	Oclaro	Harkness Ltd., UK
Dr Oijai Ongrai	Novel materials for high temperature measurements	NPL, Teddington	Metrologist, NMI, Thailand
Prof Barnabas Ikyo	Mid-IR sources for medical applications	TU-Munich, Naval Research Labs, Washington	Full Professor, Benue State University, Nigeria
Dr Joanna Coote	Ultra-sensitive laser biosensors	Bookham, Faculty of Health and Medical Science (Dr. Sub Reddy)	Research Scientist, UCL, London
Dr Sucheta (Lisa) Ahmed	Visible LEDs for solid-state lighting	UC-San Diego CHREA, Valbonne	Research Contracts Officer, University of Liverpool
Dr James Chamings	Dilute nitride-phosphide photonic components	Univ. Marburg UC San Diego, USA	Scientist, Met Office, UK
Dr Nicolas Masse	Quantum Dot Lasers	Fujitsu, Tokyo Univ. Renne Univ. Sheffield	Pellenc Selective Technologies, France.
Dr Daniel McConville	Long Wavelength GaInNAs(Sb) semiconductor QWs	Infineon, Germany Stanford, USA Univ. Marburg	Northern Ireland Government
Dr Stuart Cripps	Spectroscopy of mid-IR materials	ORC, Finland	DSTL
Dr Kevin O’Brien	Interband and interband cascade mid-IR lasers	Univ. Montpellier II Arizona State Univ.	Amazon Labs, California
Dr Gunnar Blume	Novel materials for semiconductor microcavities	Univ. Marburg	Ferdinand-Braun Institute, Berlin
Dr Daren Lock	High Power Semiconductor Lasers	Bookham	Facebook technology innovations

Teaching

ENG5055 Micro- and Nanotechnology (MSc) [Semester 2]

Convenor for Postgraduate Taught (PGT) Programmes in Engineering

Professional activities & recognition

Research fellowships

2009 - 2015: EPSRC Leadership Fellow
2019 - 2019: JSPS International Invitational Fellowship

Grant committees & research advisory boards

2002 - 2025: UKRI-EPSRC, College Member
2019 - 2025: UKRI, Future Leader Fellows Panel College
2022 - 2025: Academy of Finland, Materials Physics and Applied Photonics Review Panel (Chair)
2020 - 2025: FWO (Research Foundation - Flanders), Physics Panel (Chair)
2020 - 2022: FCT (Portugal), Physics Panel
2020 - 2021: Enterprise Ireland, DTIF Panel
2022 - 2025: EPSRC, QUDOS project advisory board
2010 - 2010: National Science Foundation (NSF), USA, Materials World Network Panel
2021 - 2025: European Union, European Innovation Council

Editorial boards

2013 - 2025: Journal of Materials Science: Materials in Electronics
2013 - 2018: IEEE Journal of Quantum Electronics
2012 - 2025: IEEE Journal of Selected Topics in Quantum Electronics
2014 - 2014: Semiconductor Science and Technology

Professional & learned societies

2021: Fellow, SPIE
2013: Fellow, Institute of Physics
2006: Senior Member, IEEE (The Institute of Electrical and Electronics Engineers)

Supplementary

Visiting Professor of Physics, University of Surrey (2023- ) Ferdinand Braun Institut, Berlin, Fellow (2022- ) Chief Technology Officer, ZiNIR Ltd. (2008- ) Honorary Professor of Physics, University of Wollongong, Australia (2018- ) President, British Science Association, Physics & Astronomy Division (2015)

Research datasets

Jump to: 2024

Number of items: 1.

2024

Aneirin, E., Duffy, D. , Marko, I., Acharya, S., Du, W., Yu, S.Q. and Sweeney, S. (2024) Challenges for room temperature operation of electrically pumped GeSn lasers. [Data Collection]

This list was generated on Sat Jun 14 23:44:01 2025 BST.

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Clarity

Professor Stephen Sweeney

Biography

Research interests

Publications

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

Articles

Book Sections

Conference Proceedings

Supervision

Teaching

Professional activities & recognition

Research fellowships

Grant committees & research advisory boards

Editorial boards

Professional & learned societies

Supplementary

Research datasets

2024