Dr Igor Marko
- Research Fellow (Electronic & Nanoscale Engineering)
email:
Ihar.Marko@glasgow.ac.uk
pronouns:
He/him/his
Publications
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., Duffy, D.A., England, J., Schneider, E., Kesaria, M., Federov, V., Clarke, E., Tan, C.H. and Sweeney, S.J. (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)
2017
Eales, T. D., Marko, I. P., Ikyo, B. A., Adams, A. R., Arafin, S., Sprengel, S., Amann, M.-C. and Sweeney, S. J. (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, I. P. and Sweeney, S. J. (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)
Eales, T., Marko, I.P., Ikyo, B.A., Adams, A.R., Vurgaftman, I., Arafin, S., Sprengel, S., Amann, M.-C., Meyer, J.R. and Sweeney, S.J. (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)
2016
Eales, T., Marko, I. P., Ikyo, B. A., Adams, A. R., Arafin, S., Sprengel, S., Amann, M.-C. and Sweeney, S. J. (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, I. P., Broderick, C. A., Jin, S., Ludewig, P., Stolz, W., Volz, K., Rorison, J. M., O'Reilly, E. P. and Sweeney, S. J. (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, I. P., Broderick, C. A., Jin, S., Ludewig, P., Stolz, W., Volz, K., Rorison, J. M., O'Reilly, E. P. and Sweeney, S. J. (2016) Optical gain in GaAsBi/GaAs quantum well diode lasers. Scientific Reports, 6, 28863. (doi: 10.1038/srep28863) (PMID:27363930) (PMCID:PMC4929443)
Broderick, C. A., Rorison, J. M., Marko, I. P., Sweeney, S. J. and O'Reilly, E. 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)
Ikyo, A.B., Marko, I.P., Hild, K., Adams, A.R., Arafin, S., Amann, M.-C. and Sweeney, S.J. (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
Sweeney, S.J. , Marko, I.P., Jin, S.R., Hild, K. 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)
Read, G. W., Marko, I. P., Hossain, N. and Sweeney, S. J. (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, A. R., Marko, I. P., Mukherjee, J., Stolojan, V., Sweeney, S. J. , Gocalinska, A., Pelucchi, E., Thomas, K. and Corbett, B. (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)
Marko, I. P. and Sweeney, S. J. (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., Mukherjee, J., Sweeney, S.J. , 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)
Marko, I.P., Adams, A.R., Massé, N.F. and Sweeney, S.J. (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., Ikyo, A.B., Marko, I.P., Sweeney, S.J. , 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
Hild, K., Batool, Z., Jin, S.R., Hossain, N., Marko, I.P., Hosea, T.J.C., Lu, X., Tiedje, T. and Sweeney, S.J. (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)
Crutchley, B. G., Marko, I. P. and Sweeney, S. J. (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)
Pal, J., Migliorato, M.A., Li, C.-K., Wu, Y.-R., Crutchley, B.G., Marko, I.P. and Sweeney, S.J. (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)
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)
Crutchley, B. G., Marko, I. P., Adams, A. R. and Sweeney, S. J. (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, B. A., Marko, I. P., Hild, K., Adams, A. R., Arafin, S., Amann, M.-C. and Sweeney, S. J. (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., Zhang, S.Y., Revin, D.G., Cockburn, J.W. and Sweeney, S.J. (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., Pal, J., Migliorato, M.A. and Sweeney, S.J. (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)
2012
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)
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)
Blume, G., Hild, K., Marko, I.P., Hosea, T.J.C., Yu, S.-Q., Chaparro, S.A., Samal, N., Johnson, S.R., Zhang, Y.-H. and Sweeney, S.J. (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)
Hossain, N., Marko, I.P., Jin, S.R., Hild, K., Sweeney, S.J. , 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)
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., Aldukhayel, A. and Sweeney, S.J. (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)
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)
Hild, K., Marko, I.P., Johnson, S.R., Yu, S.-Q., Zhang, Y.-H. and Sweeney, S.J. (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)
Ikyo, B.A., Marko, I.P., Adams, A.R., Sweeney, S.J. , 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)
2010
Sayid, S. A., Marko, I. P., Sweeney, S. J. , Barrios, P. and Poole, P. 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)
Crutchley, B. G., Marko, I. P., Adams, A. R. and Sweeney, S. J. (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)
Ikyo, B. A., Marko, I. P., Adams, A. R., Sweeney, S. J. , Canedy, C. L., Vurgaftman, I., Kim, C. S., Kim, M., Bewley, W. W. and Meyer, J. 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)
Marko, I.P., Aldukhayel, A.M., Adams, A.R., Sweeney, S.J. , 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, S. A., Marko, I. P., Adams, A. R., Sweeney, S. J. , Barrios, P. and Poole, P. (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)
Tan, S.L., Tan, L.J.J., Goh, Y.L., Zhang, S., Ng, J.S., David, J.P.R., Marko, I.P., Allam, J., Sweeney, S.J. 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, S. A., Marko, I. P., Cannard, P. J., Chen, X., Rivers, L. J., Lealman, I. F. and Sweeney, S. J. (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)
Sayid, S. A., Marko, I. P., Sweeney, S. J. and Poole, P. (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, S. A., Marko, I. P., Cannard, P. J., Chen, X., Rivers, L. J., Lealman, I. F. and Sweeney, S. J. (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., Adams, A.R., Sweeney, S.J. , 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., Ikyo, A.B., Adams, A.R., Sweeney, S.J. , 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, M. T., Marko, I. P., Massé, N. F., Andreev, A. D., Tomic, S., Sweeney, S. J. , O'Reilly, E. P. and Adams, A. 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)
Marko, I. P., Adams, A. R., Sweeney, S. J. , Teissier, R., Baranov, A. N. and Tomić, S. (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., Sweeney, S.J. , 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)
Massé, N.F., Marko, I.P., Adams, A.R. and Sweeney, S.J. (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)
2008
Crowley, M.T., Marko, I.P., Masse, N.F., Andreev, A.D., Sweeney, S.J. , 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., Adams, A.R., Sweeney, S.J. , 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. , Hild, K., Marko, I.P., 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)
Lealman, I., Dosanjh, S., Rivers, L., O'Brien, S., Cannard, P., Sweeney, S.J. , Marko, I.P. 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)
2007
Marko, I.P., Adams, A.R., Sweeney, S.J. , 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)
Hild, K., Sweeney, S.J. , Marko, I.P., 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)
Articles
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., Duffy, D.A., England, J., Schneider, E., Kesaria, M., Federov, V., Clarke, E., Tan, C.H. and Sweeney, S.J. (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)
Eales, T. D., Marko, I. P., Ikyo, B. A., Adams, A. R., Arafin, S., Sprengel, S., Amann, M.-C. and Sweeney, S. J. (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, I. P. and Sweeney, S. J. (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)
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)
Marko, I. P., Broderick, C. A., Jin, S., Ludewig, P., Stolz, W., Volz, K., Rorison, J. M., O'Reilly, E. P. and Sweeney, S. J. (2016) Optical gain in GaAsBi/GaAs quantum well diode lasers. Scientific Reports, 6, 28863. (doi: 10.1038/srep28863) (PMID:27363930) (PMCID:PMC4929443)
Ikyo, A.B., Marko, I.P., Hild, K., Adams, A.R., Arafin, S., Amann, M.-C. and Sweeney, S.J. (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)
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)
Read, G. W., Marko, I. P., Hossain, N. and Sweeney, S. J. (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, A. R., Marko, I. P., Mukherjee, J., Stolojan, V., Sweeney, S. J. , Gocalinska, A., Pelucchi, E., Thomas, K. and Corbett, B. (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)
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)
Marko, I.P., Adams, A.R., Massé, N.F. and Sweeney, S.J. (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., Ikyo, A.B., Marko, I.P., Sweeney, S.J. , 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)
Crutchley, B. G., Marko, I. P. and Sweeney, S. J. (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)
Pal, J., Migliorato, M.A., Li, C.-K., Wu, Y.-R., Crutchley, B.G., Marko, I.P. and Sweeney, S.J. (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)
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)
Aldukhayel, A., Jin, S.R., Marko, I.P., Zhang, S.Y., Revin, D.G., Cockburn, J.W. and Sweeney, S.J. (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., Pal, J., Migliorato, M.A. and Sweeney, S.J. (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)
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)
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)
Blume, G., Hild, K., Marko, I.P., Hosea, T.J.C., Yu, S.-Q., Chaparro, S.A., Samal, N., Johnson, S.R., Zhang, Y.-H. and Sweeney, S.J. (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)
Hossain, N., Marko, I.P., Jin, S.R., Hild, K., Sweeney, S.J. , 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)
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., Aldukhayel, A. and Sweeney, S.J. (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)
Hild, K., Marko, I.P., Johnson, S.R., Yu, S.-Q., Zhang, Y.-H. and Sweeney, S.J. (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)
Ikyo, B.A., Marko, I.P., Adams, A.R., Sweeney, S.J. , 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)
Sayid, S. A., Marko, I. P., Sweeney, S. J. , Barrios, P. and Poole, P. 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)
Sayid, S. A., Marko, I. P., Cannard, P. J., Chen, X., Rivers, L. J., Lealman, I. F. and Sweeney, S. J. (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)
Ikyo, A.B., Marko, I.P., Adams, A.R., Sweeney, S.J. , 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)
Crowley, M. T., Marko, I. P., Massé, N. F., Andreev, A. D., Tomic, S., Sweeney, S. J. , O'Reilly, E. P. and Adams, A. 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)
Marko, I. P., Adams, A. R., Sweeney, S. J. , Teissier, R., Baranov, A. N. and Tomić, S. (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)
Massé, N.F., Marko, I.P., Adams, A.R. and Sweeney, S.J. (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)
Hild, K., Sweeney, S.J. , Marko, I.P., 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)
Book Sections
Marko, I. P. and Sweeney, S. J. (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)
Conference Proceedings
Eales, T., Marko, I.P., Ikyo, B.A., Adams, A.R., Vurgaftman, I., Arafin, S., Sprengel, S., Amann, M.-C., Meyer, J.R. and Sweeney, S.J. (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
Eales, T., Marko, I. P., Ikyo, B. A., Adams, A. R., Arafin, S., Sprengel, S., Amann, M.-C. and Sweeney, S. J. (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, I. P., Broderick, C. A., Jin, S., Ludewig, P., Stolz, W., Volz, K., Rorison, J. M., O'Reilly, E. P. and Sweeney, S. J. (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
Broderick, C. A., Rorison, J. M., Marko, I. P., Sweeney, S. J. and O'Reilly, E. 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)
Sweeney, S.J. , Marko, I.P., Jin, S.R., Hild, K. 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)
Adams, A.R., Marko, I.P., Mukherjee, J., Sweeney, S.J. , 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)
Hild, K., Batool, Z., Jin, S.R., Hossain, N., Marko, I.P., Hosea, T.J.C., Lu, X., Tiedje, T. and Sweeney, S.J. (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)
Crutchley, B. G., Marko, I. P., Adams, A. R. and Sweeney, S. J. (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, B. A., Marko, I. P., Hild, K., Adams, A. R., Arafin, S., Amann, M.-C. and Sweeney, S. J. (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)
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)
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)
Crutchley, B. G., Marko, I. P., Adams, A. R. and Sweeney, S. J. (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)
Ikyo, B. A., Marko, I. P., Adams, A. R., Sweeney, S. J. , Canedy, C. L., Vurgaftman, I., Kim, C. S., Kim, M., Bewley, W. W. and Meyer, J. 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)
Marko, I.P., Aldukhayel, A.M., Adams, A.R., Sweeney, S.J. , 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, S. A., Marko, I. P., Adams, A. R., Sweeney, S. J. , Barrios, P. and Poole, P. (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)
Tan, S.L., Tan, L.J.J., Goh, Y.L., Zhang, S., Ng, J.S., David, J.P.R., Marko, I.P., Allam, J., Sweeney, S.J. 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, S. A., Marko, I. P., Sweeney, S. J. and Poole, P. (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, S. A., Marko, I. P., Cannard, P. J., Chen, X., Rivers, L. J., Lealman, I. F. and Sweeney, S. J. (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)
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., Ikyo, A.B., Adams, A.R., Sweeney, S.J. , 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)
Adams, A.R., Marko, I.P., Sweeney, S.J. , 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)
Crowley, M.T., Marko, I.P., Masse, N.F., Andreev, A.D., Sweeney, S.J. , 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., Adams, A.R., Sweeney, S.J. , 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. , Hild, K., Marko, I.P., 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)
Lealman, I., Dosanjh, S., Rivers, L., O'Brien, S., Cannard, P., Sweeney, S.J. , Marko, I.P. 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)
Marko, I.P., Adams, A.R., Sweeney, S.J. , 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)