2024

Falcone, V. et al. (2024) Near-infrared light trapping and avalanche multiplication in silicon epitaxial microcrystals. Advanced Optical Materials, 2302568. (doi: 10.1002/adom.202302568) (Early Online Publication)

2023

Falcone, V., Barzaghi, A., Signorelli, F., Bergamaschini, R., Valente, J. , Paul, D. , Tosi, A. and Isella, G. (2023) Ge and Si Microcrystal Photodetectors with Enhanced Infrared Responsivity. In: 2023 IEEE Nanotechnology Materials and Devices Conference (NMDC), Paestum, Italy, 22-25 October 2023, ISBN 9798350335460 (doi: 10.1109/NMDC57951.2023.10343764)

Falcone, V. et al. (2023) Photodetectors Based on 3D Self-Assembled Ge and Si Micro-Crystals. ISTDM-ICSI-2023, Como, Italy, 21-25 May 2023.

2021

Pedrini, J., Barzaghi, A., Valente, J. , Paul, D. J. , Isella, G. and Pezzoli, F. (2021) Photonic band gap and light routing in self-assembled lattices of epitaxial Ge-on-Si microstructures. Physical Review Applied, 16(6), 064024. (doi: 10.1103/PhysRevApplied.16.064024)

Albani, M., Bergamaschini, R., Barzaghi, A., Salvalaglio, M., Valente, J. , Paul, D. J. , Voigt, A., Isella, G. and Montalenti, F. (2021) Faceting of Si and Ge crystals grown on deeply patterned Si substrates in the kinetic regime: phase-field modelling and experiments. Scientific Reports, 11, 18825. (doi: 10.1038/s41598-021-98285-1) (PMID:34552147) (PMCID:PMC8458435)

Barzaghi, A. et al. (2021) Self-Assembled Ge-on-Si Microcrystals for Single Photon Detection. Micro and Nano Engineering Conference, Turin, Italy, 20-23 Sep 2021.

2020

Barzaghi, A. et al. (2020) Self-assembly of nanovoids in Si microcrystals epitaxially grown on deeply patterned substrates. Crystal Growth and Design, 20(5), pp. 2914-2920. (doi: 10.1021/acs.cgd.9b01312)

Griskeviciute, U., Millar, R. W. , Gallacher, K. , Valente, J. and Paul, D. J. (2020) Ge-on-Si waveguides for sensing in the molecular fingerprint regime. Optics Express, 28(4), pp. 5749-5757. (doi: 10.1364/OE.382356)

2019

Lyons, A. , Oren, D., Roger, T., Savinov, V., Valente, J. , Vezzoli, S., Zheludev, N. I., Segev, M. and Faccio, D. (2019) Coherent metamaterial absorption of two-photon states with 40% efficiency. Physical Review A: Atomic, Molecular and Optical Physics, 99(1), 011801(R). (doi: 10.1103/physreva.99.011801)

2018

Valente, J. (2018) Fabrication of planar nanomechanical photonic metamaterials. Journal of Optics, 20(9), 093501. (doi: 10.1088/2040-8986/aad8d6)

Valente, J. , Godde, T., Zhang, Y., Mowbray, D. J. and Liu, H. (2018) Light-emitting GaAs nanowires on a flexible substrate. Nano Letters, 18(7), pp. 4206-4213. (doi: 10.1021/acs.nanolett.8b01100) (PMID:29894627)

2017

Nalla, V., Valente, J. , Sun, H. and Zheludev, N. I. (2017) 11-fs dark pulses generated via coherent absorption in plasmonic metamaterial. Optics Express, 25(19), pp. 22620-22625. (doi: 10.1364/oe.25.022620) (PMID:29041569)

Altuzarra, C., Vezzoli, S., Valente, J. , Gao, W., Soci, C., Faccio, D. and Couteau, C. (2017) Coherent perfect absorption in metamaterials with entangled photons. ACS Photonics, 4(9), pp. 2124-2128. (doi: 10.1021/acsphotonics.7b00514)

2016

Altuzarra, C., Vezzoli, S., Valente, J. , Soci, C., Faccio, D. F. A. , Couteau, C. and Zheludev, N. I. (2016) 'Remote Control' of Coherent Light Absorption with Entangled Photons. In: 2016 Conference on Lasers and Electro-Optics. CLEO 2016, San Jose, US., 5-10 June 2016, ISBN 9781943580118

Papaioannou, M., Plum, E., Valente, J. , Rogers, E. T.F. and Zheludev, N. I. (2016) All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial. APL Photonics, 1(9), 090801. (doi: 10.1063/1.4966269)

Cencillo-Abad, P., Ou, J.-Y., Plum, E., Valente, J. and Zheludev, N. I. (2016) Random access actuation of nanowire grid metamaterial. Nanotechnology, 27(48), 485206. (doi: 10.1088/0957-4484/27/48/485206) (PMID:27811391)

Valente, J. , Plum, E., Youngs, I. J. and Zheludev, N. I. (2016) Nano- and micro-auxetic plasmonic materials. Advanced Materials, 28(26), pp. 5176-5180. (doi: 10.1002/adma.201600088) (PMID:27143502)

Valente, J. , Ou, J.Y., Plum, E. and Zheludev, N.I. (2016) Reconfigurable Metamaterials Controlled by Lorentz, Ampere and Coulomb Forces: Towards GHz Bandwidth. In: The European Conference on Lasers and Electro-Optics, CLEO_Europe 2013, Munich, Germany, 12-16 May 2013, ISBN 9781479905942

Papaioannou, M., Plum, E., Valente, J. , Rogers, E. T.F. and Zheludev, N. I. (2016) Two-dimensional control of light with light on metasurfaces. Light: Science and Applications, 5(4), e16070. (doi: 10.1038/lsa.2016.70)

2015

Roger, T. et al. (2015) Coherent perfect absorption in deeply subwavelength films in the single-photon regime. Nature Communications, 6, 7031. (doi: 10.1038/ncomms8031) (PMID:25991584) (PMCID:PMC4455071)

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I. J. and Zheludev, N. I. (2015) A magneto-electro-optical effect in a plasmonic nanowire material. Nature Communications, 6, 7021. (doi: 10.1038/ncomms8021) (PMID:25906761) (PMCID:PMC4421854)

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I. J. and Zheludev, N. I. (2015) Reconfiguring photonic metamaterials with currents and magnetic fields. Applied Physics Letters, 106(11), 111905. (doi: 10.1063/1.4913609)

2014

Valente, J. , Ou, J.-Y., Plum, E., MacDonald, K. F. and Zheludev, N. (2014) Metamaterial NEMS: Giant optical nonlinearity and magnetoelectricl effect. In: 2014 International Conference on Optical MEMS and Nanophotonics (OMN), University of Strathclyde, Glasgow, UK, 17-21 Aug 2014, pp. 53-54. (doi: 10.1109/OMN.2014.6924539)

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I.J. and Zheludev, N.I. (2014) Lorentz Force Metamaterial with Giant Optical Magnetoelectric Response. In: CLEO: QELS_Fundamental Science, San Jose, CA, United States, 8-13 June 2014, ISBN 9781557529992

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I.J. and Zheludev, N.I. (2014) Lorentz Force Metamaterial with Giant Optical Magnetoelectric Response. Technical Digest. In: 2014 Conference on Lasers and Electro-Optics, CLEO 2014, San Jose, U.S., 8-13 June 2014,

2013

Valente, J. , Ou, J.Y., Plum, E. and Zheludev, N.I. (2013) Reconfigurable Metamaterials Controlled by Lorentz, Ampere and Coulomb Forces: Towards GHz Bandwidth. In: 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC, 12-16 May 2013, p. 1. ISBN 9781479905942 (doi: 10.1109/CLEOE-IQEC.2013.6801421)

2011

Parreira, P. , Lavareda, G., Amaral, A., Botelho do Rego, A.M., Conde, O., Valente, J. , Nunes, F. and Nunes de Carvalho, C. (2011) Transparent p-type CuxS thin films. Journal of Alloys and Compounds, 509(16), pp. 5099-5104. (doi: 10.1016/j.jallcom.2011.01.174)

2010

Parreira, P. , Lavareda, G., Valente, J. , Nunes, F.T., Amaral, A. and Nunes de Carvalho, C. (2010) Optoelectronic properties of transparent p-type semiconductor CuxS thin films. Physica Status Solidi A: Applications and Materials Science, 207(7), pp. 1652-1654. (doi: 10.1002/pssa.200983731)

Lavareda, G., Parreira, P. , Valente, J. , Nunes, F.T., Amaral, A. and Nunes de Carvalho, C. (2010) Highly transparent undoped semiconducting ZnOx thin films deposited at room temperature by rf-PERTE — Influence of rf power. Journal of Non-Crystalline Solids, 356(28-30), pp. 1392-1394. (doi: 10.1016/j.jnoncrysol.2010.05.056)

Parreira, P. , Lavareda, G., Valente, J. , Nunes, F.T., Amaral, A. and Nunes de Carvalho, C. (2010) Undoped InOx films deposited by radio frequency plasma enhanced reactive thermal evaporation at room temperature: importance of substrate. Journal of Nanoscience and Nanotechnology, 10(4), pp. 2701-2704. (doi: 10.1166/jnn.2010.1431) (PMID:20355487)

Tanimoto, T. et al. (2010) Measurement of fast electrons spectra generated by interaction between solid target and peta watt laser. Journal of Physics: Conference Series, 244(2), 022067. (doi: 10.1088/1742-6596/244/2/022067)

2009

Norreys, P.A. et al. (2009) Recent fast electron energy transport experiments relevant to fast ignition inertial fusion. Nuclear Fusion, 49(10), 104023. (doi: 10.1088/0029-5515/49/10/104023)

Tanimoto, T. et al. (2009) Measurements of fast electron scaling generated by petawatt laser systems. Physics of Plasmas, 16(6), 062703. (doi: 10.1063/1.3155086)

2008

Parreira, P. , Valente, J. , Lavareda, G., Nunes de Carvalho, C., Ramos, A.R., Alves, E., Brogueira, P. and Amaral, A. (2008) Role of the oxygen partial pressure on the properties of undoped tin oxide films deposited at low temperature. Physica Status Solidi A: Applications and Materials Science, 205(8), pp. 1957-1960. (doi: 10.1002/pssa.200778930)

Valente, J. , Lavareda, G., Conde, O., Parreira, P. , Amaral, A. and Nunes de Carvalho, C. (2008) Role of rf power on the properties of undoped SnOx films deposited by rf-PERTE at low substrate temperature. Surface and Coatings Technology, 202(16), pp. 3893-3896. (doi: 10.1016/j.surfcoat.2008.01.033)

Nunes de Carvalho, C., Lavareda, G., Parreira, P. , Valente, J. , Amaral, A. and Botelho do Rego, A.M. (2008) Influence of oxygen partial pressure on the properties of undoped InOx films deposited at room temperature by rf-PERTE. Journal of Non-Crystalline Solids, 354(15-16), pp. 1643-1647. (doi: 10.1016/j.jnoncrysol.2007.10.004)

Articles

Falcone, V. et al. (2024) Near-infrared light trapping and avalanche multiplication in silicon epitaxial microcrystals. Advanced Optical Materials, 2302568. (doi: 10.1002/adom.202302568) (Early Online Publication)

Pedrini, J., Barzaghi, A., Valente, J. , Paul, D. J. , Isella, G. and Pezzoli, F. (2021) Photonic band gap and light routing in self-assembled lattices of epitaxial Ge-on-Si microstructures. Physical Review Applied, 16(6), 064024. (doi: 10.1103/PhysRevApplied.16.064024)

Albani, M., Bergamaschini, R., Barzaghi, A., Salvalaglio, M., Valente, J. , Paul, D. J. , Voigt, A., Isella, G. and Montalenti, F. (2021) Faceting of Si and Ge crystals grown on deeply patterned Si substrates in the kinetic regime: phase-field modelling and experiments. Scientific Reports, 11, 18825. (doi: 10.1038/s41598-021-98285-1) (PMID:34552147) (PMCID:PMC8458435)

Barzaghi, A. et al. (2020) Self-assembly of nanovoids in Si microcrystals epitaxially grown on deeply patterned substrates. Crystal Growth and Design, 20(5), pp. 2914-2920. (doi: 10.1021/acs.cgd.9b01312)

Griskeviciute, U., Millar, R. W. , Gallacher, K. , Valente, J. and Paul, D. J. (2020) Ge-on-Si waveguides for sensing in the molecular fingerprint regime. Optics Express, 28(4), pp. 5749-5757. (doi: 10.1364/OE.382356)

Lyons, A. , Oren, D., Roger, T., Savinov, V., Valente, J. , Vezzoli, S., Zheludev, N. I., Segev, M. and Faccio, D. (2019) Coherent metamaterial absorption of two-photon states with 40% efficiency. Physical Review A: Atomic, Molecular and Optical Physics, 99(1), 011801(R). (doi: 10.1103/physreva.99.011801)

Valente, J. (2018) Fabrication of planar nanomechanical photonic metamaterials. Journal of Optics, 20(9), 093501. (doi: 10.1088/2040-8986/aad8d6)

Valente, J. , Godde, T., Zhang, Y., Mowbray, D. J. and Liu, H. (2018) Light-emitting GaAs nanowires on a flexible substrate. Nano Letters, 18(7), pp. 4206-4213. (doi: 10.1021/acs.nanolett.8b01100) (PMID:29894627)

Nalla, V., Valente, J. , Sun, H. and Zheludev, N. I. (2017) 11-fs dark pulses generated via coherent absorption in plasmonic metamaterial. Optics Express, 25(19), pp. 22620-22625. (doi: 10.1364/oe.25.022620) (PMID:29041569)

Altuzarra, C., Vezzoli, S., Valente, J. , Gao, W., Soci, C., Faccio, D. and Couteau, C. (2017) Coherent perfect absorption in metamaterials with entangled photons. ACS Photonics, 4(9), pp. 2124-2128. (doi: 10.1021/acsphotonics.7b00514)

Papaioannou, M., Plum, E., Valente, J. , Rogers, E. T.F. and Zheludev, N. I. (2016) All-optical multichannel logic based on coherent perfect absorption in a plasmonic metamaterial. APL Photonics, 1(9), 090801. (doi: 10.1063/1.4966269)

Cencillo-Abad, P., Ou, J.-Y., Plum, E., Valente, J. and Zheludev, N. I. (2016) Random access actuation of nanowire grid metamaterial. Nanotechnology, 27(48), 485206. (doi: 10.1088/0957-4484/27/48/485206) (PMID:27811391)

Valente, J. , Plum, E., Youngs, I. J. and Zheludev, N. I. (2016) Nano- and micro-auxetic plasmonic materials. Advanced Materials, 28(26), pp. 5176-5180. (doi: 10.1002/adma.201600088) (PMID:27143502)

Papaioannou, M., Plum, E., Valente, J. , Rogers, E. T.F. and Zheludev, N. I. (2016) Two-dimensional control of light with light on metasurfaces. Light: Science and Applications, 5(4), e16070. (doi: 10.1038/lsa.2016.70)

Roger, T. et al. (2015) Coherent perfect absorption in deeply subwavelength films in the single-photon regime. Nature Communications, 6, 7031. (doi: 10.1038/ncomms8031) (PMID:25991584) (PMCID:PMC4455071)

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I. J. and Zheludev, N. I. (2015) A magneto-electro-optical effect in a plasmonic nanowire material. Nature Communications, 6, 7021. (doi: 10.1038/ncomms8021) (PMID:25906761) (PMCID:PMC4421854)

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I. J. and Zheludev, N. I. (2015) Reconfiguring photonic metamaterials with currents and magnetic fields. Applied Physics Letters, 106(11), 111905. (doi: 10.1063/1.4913609)

Parreira, P. , Lavareda, G., Amaral, A., Botelho do Rego, A.M., Conde, O., Valente, J. , Nunes, F. and Nunes de Carvalho, C. (2011) Transparent p-type CuxS thin films. Journal of Alloys and Compounds, 509(16), pp. 5099-5104. (doi: 10.1016/j.jallcom.2011.01.174)

Parreira, P. , Lavareda, G., Valente, J. , Nunes, F.T., Amaral, A. and Nunes de Carvalho, C. (2010) Optoelectronic properties of transparent p-type semiconductor CuxS thin films. Physica Status Solidi A: Applications and Materials Science, 207(7), pp. 1652-1654. (doi: 10.1002/pssa.200983731)

Lavareda, G., Parreira, P. , Valente, J. , Nunes, F.T., Amaral, A. and Nunes de Carvalho, C. (2010) Highly transparent undoped semiconducting ZnOx thin films deposited at room temperature by rf-PERTE — Influence of rf power. Journal of Non-Crystalline Solids, 356(28-30), pp. 1392-1394. (doi: 10.1016/j.jnoncrysol.2010.05.056)

Parreira, P. , Lavareda, G., Valente, J. , Nunes, F.T., Amaral, A. and Nunes de Carvalho, C. (2010) Undoped InOx films deposited by radio frequency plasma enhanced reactive thermal evaporation at room temperature: importance of substrate. Journal of Nanoscience and Nanotechnology, 10(4), pp. 2701-2704. (doi: 10.1166/jnn.2010.1431) (PMID:20355487)

Tanimoto, T. et al. (2010) Measurement of fast electrons spectra generated by interaction between solid target and peta watt laser. Journal of Physics: Conference Series, 244(2), 022067. (doi: 10.1088/1742-6596/244/2/022067)

Norreys, P.A. et al. (2009) Recent fast electron energy transport experiments relevant to fast ignition inertial fusion. Nuclear Fusion, 49(10), 104023. (doi: 10.1088/0029-5515/49/10/104023)

Tanimoto, T. et al. (2009) Measurements of fast electron scaling generated by petawatt laser systems. Physics of Plasmas, 16(6), 062703. (doi: 10.1063/1.3155086)

Parreira, P. , Valente, J. , Lavareda, G., Nunes de Carvalho, C., Ramos, A.R., Alves, E., Brogueira, P. and Amaral, A. (2008) Role of the oxygen partial pressure on the properties of undoped tin oxide films deposited at low temperature. Physica Status Solidi A: Applications and Materials Science, 205(8), pp. 1957-1960. (doi: 10.1002/pssa.200778930)

Valente, J. , Lavareda, G., Conde, O., Parreira, P. , Amaral, A. and Nunes de Carvalho, C. (2008) Role of rf power on the properties of undoped SnOx films deposited by rf-PERTE at low substrate temperature. Surface and Coatings Technology, 202(16), pp. 3893-3896. (doi: 10.1016/j.surfcoat.2008.01.033)

Nunes de Carvalho, C., Lavareda, G., Parreira, P. , Valente, J. , Amaral, A. and Botelho do Rego, A.M. (2008) Influence of oxygen partial pressure on the properties of undoped InOx films deposited at room temperature by rf-PERTE. Journal of Non-Crystalline Solids, 354(15-16), pp. 1643-1647. (doi: 10.1016/j.jnoncrysol.2007.10.004)

Conference or Workshop Item

Falcone, V. et al. (2023) Photodetectors Based on 3D Self-Assembled Ge and Si Micro-Crystals. ISTDM-ICSI-2023, Como, Italy, 21-25 May 2023.

Barzaghi, A. et al. (2021) Self-Assembled Ge-on-Si Microcrystals for Single Photon Detection. Micro and Nano Engineering Conference, Turin, Italy, 20-23 Sep 2021.

Conference Proceedings

Falcone, V., Barzaghi, A., Signorelli, F., Bergamaschini, R., Valente, J. , Paul, D. , Tosi, A. and Isella, G. (2023) Ge and Si Microcrystal Photodetectors with Enhanced Infrared Responsivity. In: 2023 IEEE Nanotechnology Materials and Devices Conference (NMDC), Paestum, Italy, 22-25 October 2023, ISBN 9798350335460 (doi: 10.1109/NMDC57951.2023.10343764)

Altuzarra, C., Vezzoli, S., Valente, J. , Soci, C., Faccio, D. F. A. , Couteau, C. and Zheludev, N. I. (2016) 'Remote Control' of Coherent Light Absorption with Entangled Photons. In: 2016 Conference on Lasers and Electro-Optics. CLEO 2016, San Jose, US., 5-10 June 2016, ISBN 9781943580118

Valente, J. , Ou, J.Y., Plum, E. and Zheludev, N.I. (2016) Reconfigurable Metamaterials Controlled by Lorentz, Ampere and Coulomb Forces: Towards GHz Bandwidth. In: The European Conference on Lasers and Electro-Optics, CLEO_Europe 2013, Munich, Germany, 12-16 May 2013, ISBN 9781479905942

Valente, J. , Ou, J.-Y., Plum, E., MacDonald, K. F. and Zheludev, N. (2014) Metamaterial NEMS: Giant optical nonlinearity and magnetoelectricl effect. In: 2014 International Conference on Optical MEMS and Nanophotonics (OMN), University of Strathclyde, Glasgow, UK, 17-21 Aug 2014, pp. 53-54. (doi: 10.1109/OMN.2014.6924539)

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I.J. and Zheludev, N.I. (2014) Lorentz Force Metamaterial with Giant Optical Magnetoelectric Response. In: CLEO: QELS_Fundamental Science, San Jose, CA, United States, 8-13 June 2014, ISBN 9781557529992

Valente, J. , Ou, J.-Y., Plum, E., Youngs, I.J. and Zheludev, N.I. (2014) Lorentz Force Metamaterial with Giant Optical Magnetoelectric Response. Technical Digest. In: 2014 Conference on Lasers and Electro-Optics, CLEO 2014, San Jose, U.S., 8-13 June 2014,

Valente, J. , Ou, J.Y., Plum, E. and Zheludev, N.I. (2013) Reconfigurable Metamaterials Controlled by Lorentz, Ampere and Coulomb Forces: Towards GHz Bandwidth. In: 2013 Conference on Lasers and Electro-Optics Europe and International Quantum Electronics Conference, CLEO/Europe-IQEC, 12-16 May 2013, p. 1. ISBN 9781479905942 (doi: 10.1109/CLEOE-IQEC.2013.6801421)