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Number of items: 32.

Gillgrass, S. J., Allford, C. P. ORCID: https://orcid.org/0000-0002-3798-9014, Peach, T., Baker, J., Johnson, A. D., Davies, J. I., Joel, A. M., Shutts, S. ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, P. M. ORCID: https://orcid.org/0000-0002-9105-4842 2023. Impact of thermal oxidation uniformity on 150 mm GaAs- and Ge-substrate VCSELs. Journal of Physics D: Applied Physics 56 (15) , 154002. 10.1088/1361-6463/acc040
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Hentschel, C., Allford, C. P. ORCID: https://orcid.org/0000-0002-3798-9014, Gillgrass, S-J., Travers-Nabialek, J., Forrest, R., Baker, J., Meiklejohn, J., Powell, D., Meredith, W., Haji, M., Davies, J. I., Shutts, S. ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, P. M. ORCID: https://orcid.org/0000-0002-9105-4842 2023. Gain measurements on VCSEL material using segmented contact technique. Journal of Physics D: Applied Physics 56 (7) , 074003. 10.1088/1361-6463/acaf0b
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Baker, Jack, Allford, Craig. P. ORCID: https://orcid.org/0000-0002-3798-9014, Gillgrass, Sara., Peach, Tomas., Meiklejohn, James, Hentschel, Curtis, Meredith, Wyn, Powell, Denise, Sweet, Tracy ORCID: https://orcid.org/0000-0002-6947-5018, Haji, Mohsin, Davies, J. Iwan, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2022. VCSEL quick fabrication of 894.6 nm wavelength epi‐material for miniature atomic clock applications. IET Optoelectronics 10.1049/ote2.12082
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Baker, Jack, Gillgrass, Sara, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Peach, Tomas, Hentschel, Curtis, Sweet, Tracy ORCID: https://orcid.org/0000-0002-6947-5018, Davies, J. Iwan, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2022. VCSEL quick fabrication for assessment of large diameter epitaxial wafers. IEEE Photonics Journal 14 (3) 10.1109/JPHOT.2022.3169032
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Maglio, Benjamin, Jarvis, Lydia, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Gillgrass, Sara-Jayne, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Tang, Mingchu, Liu, Huiyun and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2021. The limits to peak modal gain in p-modulation doped indium arsenide quantum dot laser diodes. Presented at: 2021 IEEE Photonics Conference (IPC), Vancouver, BC, Canada, 18-21 October 2021. 2021 IEEE Photonics Conference (IPC). IEEE, pp. 1-2. 10.1109/IPC48725.2021.9592852
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Baker, Jack, Gillgrass, Sara, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Hentschel, Curtis, Davies, J. Iwan, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2021. Sub-mA threshold current vertical cavity surface emitting lasers with a simple fabrication process. Presented at: 2021 IEEE Photonics Conference (IPC), 18-21 October 2021. Proceedings of the 2021 IEEE Photonics Conference (IPC). IEEE, 10.1109/IPC48725.2021.9592977
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Hentschel, Curtis, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Gillgrass, Sara-Jayne, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Nabialek, Josie, Forrest, Richard, Baker, Jack, Hayes, David G. ORCID: https://orcid.org/0000-0002-2303-1622, Meredith, Wyn, Davies, J. Iwan, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2021. Gain measurements on vertical cavity surface emitting laser material using segmented contact technique. Presented at: 2021 IEEE Photonics Conference (IPC), 18-21 October 2021. 2021 IEEE Photonics Conference (IPC). IEEE, 10.1109/IPC48725.2021.9592961
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Baker, Jack, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Gillgrass, Sara-Jayne, Forrest, Richard, Hayes, David G. ORCID: https://orcid.org/0000-0002-2303-1622, Nabialek, Josie, Hentschel, Curtis, Davies, J. Iwan, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2021. Quick fabrication VCSELs for characterisation of epitaxial material. Applied Sciences 11 (20) , 9369. 10.3390/app11209369
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Mahoney, Joe, Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842, Maglio, Benjamin, Jarvis, Lydia, Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Tang, Mingchu, Liu, Huiyun and Abadia Calvo, Nicolas ORCID: https://orcid.org/0000-0002-7355-4245 2021. QCSE and carrier blocking in P-modulation doped InAs/InGaAs quantum dots. Presented at: CLEO: Applications and Technology 2021, 9-14 May 2021. OSA Technical Digest. 10.1364/CLEO_AT.2021.JTU3A.167

Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Forrest, Adam F., Alharbi, Reem, Krysa, Andrey B., Cataluna, Maria Ana and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2020. Monolithic InP quantum dot mode-locked lasers emitting at 730 nm. IEEE Photonics Technology Letters 32 (17) , pp. 1073-1076.
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Alharbi, Reem, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Krysa, Andrey B. and Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842 2020. Design and realisation of InP mode-locked lasers emitting in the 730nm wavelength range. Presented at: Novel In-Plane Semiconductor Lasers XIX, San Francisco, CA, USA, 3-6 February 2020.
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Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Shi, Bei, Luo, Wei, Lau, Kei May and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2019. Monolithic growth of InAs quantum dots lasers on (001) silicon emitting at 1.55 μm. Presented at: 2019 IEEE Photonics Conference (IPC), San Antonio, TX, USA, 2- Sept - 3 Oct 2019. 2019 IEEE Photonics Conference (IPC). IEEE, p. 1. 10.1109/IPCon.2019.8908479
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Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Krysa, Andrey B. and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2019. InP quantum dot mode-locked lasers and materials studies. Presented at: 2019 IEEE Photonics Conference (IPC), San Antonio, TX, USA, 2- Sept - 3 Oct 2019. 2019 IEEE Photonics Conference (IPC). IEEE, p. 1. 10.1109/IPCon.2019.8908334
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Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Spinnler, Clemens, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Sobiesierski, Angela, Tang, Mingchu, Liu, Huiyun and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2019. Degradation of III-V quantum dot lasers grown directly on silicon substrates. IEEE Journal of Selected Topics in Quantum Electronics 25 (6) , 1900406. 10.1109/JSTQE.2019.2915994
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Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Krysa, Andrey B. and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2019. 12.5-GHz InP quantum dot monolithically mode-locked lasers emitting at 740 nm. Presented at: CLEO: Science and Innovations 2019, San Jose, CA, USA, 5-10 May 2019. CLEO: Science and Innovations 2019. Optical Society of America, SM3N.6. 10.1364/CLEO_SI.2019.SM3N.6
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Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Forrest, Adam F., Alharbi, Reem, Krysa, Andrey B., Cataluna, Maria Ana and Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842 2019. InP quantum dot monolithic mode-locked lasers for ultrashort pulse generation at 735 nm. Presented at: European Semiconductor Laser Workshop 2019 (ESLW 2019), Tyndall National Institute, University College Cork, Cork, Ireland, 27-28 September 2019.
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Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Shi, B., Luo, W., Lau, Kei May and Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842 2019. Optical gain and absorption of 1.55 um emitting InAs quantum dot lasers directly grown on (001) silicon. Presented at: European Semiconductor Laser Workshop 2019 (ESLW 2019), Tyndall National Institute, University College Cork, Cork, Ireland, 27-28 September 2019.
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Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Allford, Craig P ORCID: https://orcid.org/0000-0002-3798-9014, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Krysa, Andrey B. and Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842 2019. Monolithically mode-locked self-assembled InP quantum dot lasers. Presented at: UK Semiconductors Conference 2019 (UKSC 2019), Sheffield, England. U.K., 10-11 July 2019.
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Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014, Shi, Bei, Lua, Wei, Lau, Kei May and Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842 2019. Monolithic growth InAs quantum dots lasers on (001) silicon emitting at 1.5 um. Presented at: UK Semiconductors Conference 2019 (UKSC 2019), Sheffield, England. U.K., 10-11 July 2019.
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Jarvis, Lydia, Maglio, Benjamin, Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014, Li, Zhibo ORCID: https://orcid.org/0000-0002-6913-1426, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Deng, Huiwen, Cheng, Siming, Tang, Mingchu, Liu, Huiyun and Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842 2019. Increasing gain in p-modulation-doped InAs quantum-dot lasers. Presented at: Novel In-Plane Semiconductor Lasers XIX, San Francisco, CA, USA, 3-6 February 2020.
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Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790, Allford, C. P. ORCID: https://orcid.org/0000-0002-3798-9014, Spinnler, C., Li, Z., Tang, M., Liu, H. and Smowton, P. M. ORCID: https://orcid.org/0000-0002-9105-4842 2018. Degradation studies of InAs/GaAs QD lasers grown on Si. Presented at: ISLC 2018: 26th In ternational Semiconductor Laser Conference, Santa Fe, NM, USA, 16-19 September 2018. 2018 IEEE International Semiconductor Laser Conference (ISLC). Piscataway, NJ: IEEE, pp. 85-86. 10.1109/ISLC.2018.8516178
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McIndo, Christopher, Hayes, David ORCID: https://orcid.org/0000-0002-2303-1622, Papageorgiou, Andreas, Hanks, L. A., Smith, George ORCID: https://orcid.org/0000-0003-1069-5347, Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014, Zhang, S, Clarke, E. M. and Buckle, Philip ORCID: https://orcid.org/0000-0001-9508-7783 2018. Optical microscopy as a probe of the rate limiting transport lifetime in InSb/Al1-xInxSb quantum wells. Journal of Physics: Conference Series 964 , 012005. 10.1088/1742-6596/964/1/012005
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Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Gillgrass, Sara-Jayne, Al-Ghamdi, Mohammed S., Krysa, Andrey B., Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, Peter ORCID: https://orcid.org/0000-0002-9105-4842 2018. Barrier width effects in InAsP/AlGaInP quantum dot lasers. Presented at: UK Semiconductor Conference 2018 (UKSC 2018), Sheffield, UK, 4-5 July 2018.
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McIndo, Christopher J., Hanks, Laura A., Smith, George V. ORCID: https://orcid.org/0000-0003-1069-5347, Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014, Zhang, Shiyong, Clarke, Edmund M. and Buckle, Philip ORCID: https://orcid.org/0000-0001-9508-7783 2018. Advances in electron transport in InSb/AlxIn1-xSb quantum wells. Presented at: International Symposium on Quantum Hall Effects and Related Topics (QHE2018), Max Planck Institute for Solid State Research, Stuttgart, Germany, 27-29 June 2018.
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Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014 and Buckle, Philip D. ORCID: https://orcid.org/0000-0001-9508-7783 2017. Strain compensated InGaAs/AlAs triple barrier resonant tunnelling structures for THz applications. IEEE Transactions on Terahertz Science & Technology 7 (6) , pp. 772-779. 10.1109/TTHZ.2017.2758266
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McIndo, Christopher J., Hayes, David G. ORCID: https://orcid.org/0000-0002-2303-1622, Papageorgiou, Andreas, Hanks, Laura A., Smith, George V. ORCID: https://orcid.org/0000-0003-1069-5347, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Zhang, Shiyong, Clarke, Edmund M. and Buckle, Philip D. ORCID: https://orcid.org/0000-0001-9508-7783 2017. Determination of the transport lifetime limiting scattering rate in InSb/AlxIn1−x Sb quantum wells using optical surface microscopy. Physica E: Low-dimensional Systems and Nanostructures 91 , pp. 169-172. 10.1016/j.physe.2017.04.019
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Hayes, D. G. ORCID: https://orcid.org/0000-0002-2303-1622, Allford, C. P. ORCID: https://orcid.org/0000-0002-3798-9014, Smith, G. V. ORCID: https://orcid.org/0000-0003-1069-5347, McIndo, C., Hanks, L. A., Gilbertson, A. M., Cohen, L. F., Zhang, S., Clarke, E. M. and Buckle, P. D. ORCID: https://orcid.org/0000-0001-9508-7783 2017. Electron transport lifetimes in InSb/Al1-x In x Sb quantum well 2DEGs. Semiconductor Science and Technology 32 , 085002. 10.1088/1361-6641/aa75c8
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Smith, George V. ORCID: https://orcid.org/0000-0003-1069-5347, Hayes, David G. ORCID: https://orcid.org/0000-0002-2303-1622, Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Zhang, Shiyong, Clarke, Edmund M. and Buckle, Philip ORCID: https://orcid.org/0000-0001-9508-7783 2017. Anomalous large apparent oscillation of effective g-factor in an InSb quantum well two-dimensional electron gas. Presented at: Electronic Properties of Two-Dimensional Systems 2017 (EP2DS 17), State College, PA, USA, 31 July - 4 August 2017.
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Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014 2016. Resonant tunnelling in GaAs/AlGaAs triple barrier heterostructures. PhD Thesis, Cardiff University.
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Allford, C. P. ORCID: https://orcid.org/0000-0002-3798-9014, Legg, R. E., O'Donnell, R. A., Dawson, P., Missous, M. and Buckle, P. D. ORCID: https://orcid.org/0000-0001-9508-7783 2015. Thermally activated resonant tunnelling in GaAs/AlGaAs triple barrier heterostructures. Semiconductor Science and Technology 30 (10) , 105035. 10.1088/0268-1242/30/10/105035
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Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Buckle, Philip D. ORCID: https://orcid.org/0000-0001-9508-7783 and Missous, M. 2015. Critical state alignment and charge accumulation in triple barrier resonant tunnelling structures. Presented at: Workshop on Compound Semiconductor Devices and Integrated Circuits 2015, Smolenice, Slovakia, 8-10 June 2015.
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Allford, Craig P. ORCID: https://orcid.org/0000-0002-3798-9014, Legg, Robert E., O'Donnell, Rebecca A., Dawson, P., Missous, M. and Buckle, Philip D. ORCID: https://orcid.org/0000-0001-9508-7783 2015. Thermally activated resonant tunnelling in GaAs/AlGaAs triple barrier tunnelling structures. Presented at: UK Semiconductor Conference 2014 (UKSC 2014), Sheffield, UK,
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