Dr Sara-Jayne Gillgrass

2025

• Mishra, P. et al. 2025. High temperature operation of co-doped InAs quantum dot laser for O-band emission. IEEE Photonics Journal (10.1109/jphot.2025.3560443)
• Baker, J., Allford, C. P., Gillgrass, S., Davies, J. I., Shutts, S. and Smowton, P. M. 2025. Thermal performance of 940 nm AlGaAs-Based VCSELs grown on germanium. IEEE Photonics Journal (10.1109/jphot.2025.3552951)

2024

• Albeladi, F. T., Allford, C. P., Gillgrass, S., Power, S., Albittar, N. and Smowton, P. M. 2024. Multi-mode interference reflector InAs-QD mode-locked laser for integrated photonics. Presented at: 2024 IEEE Photonics Conference (IPC), Rome, Italy, 10-14 November 20242024 IEEE Photonics Conference (IPC). IEEE, (10.1109/ipc60965.2024.10799723)
• Jarvis, L. et al. 2024. Improving the performance of co-doped 1300nm QD lasers and modulators. Presented at: IEEE 29th International Semiconductor Laser Conference (ISLC), Orlando, FL, USA, 29 September - 02 October 20242024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE pp. 1-2., (10.1109/islc57752.2024.10717406)
• Mishra, P. et al. 2024. Achieving O-band InAs quantum dot laser operation at 200 °C. Presented at: 2024 IEEE 29th International Semiconductor Laser Conference (ISLC), Orlando, FL, USA, 29 September - 02 October 20242024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE pp. 1-2., (10.1109/islc57752.2024.10717409)
• Gillgrass, S., Baker, J., Allford, C., Johnson, A., Davies, J., Shutts, S. and Smowton, P. 2024. First demonstration of 940-nm VCSELs fabricated over 200-mm GaAs- and Ge-substrates. Presented at: IEEE 29th International Semiconductor Laser Conference (ISLC), Orlando, FL, USA, 29 September - 02 October 20242024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE, (10.1109/islc57752.2024.10717349)
• Baker, J., Allford, C. P., Gillgrass, S., Davies, J. I., Shutts, S. and Smowton, P. M. 2024. Improved thermal performance of VCSELs on germanium substrates. Presented at: IEEE 29th International Semiconductor Laser Conference (ISLC), Orlando, FL, USA, 29 September - 02 October 20242024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE pp. 1-2., (10.1109/islc57752.2024.10717337)
• Albeladi, F. et al. 2024. A platform for integrated photonics. Presented at: IEEE 29th International Semiconductor Laser Conference (ISLC), Orlando, FL, USA, 29 September - 2 October 20242024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE pp. 1-2., (10.1109/islc57752.2024.10717359)
• Albeladi, F., Gillgrass, S., Mishra, P., Albittar, N., Power, S., Shutts, S. and Smowton, P. M. 2024. On-chip InAs QD ring-resonator multi-mode interference reflector lasers for PICs. Presented at: 2024 IEEE 29th International Semiconductor Laser Conference (ISLC), Orlando, FL, USA, 29 September - 02 October 20242024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE pp. 1-2., (10.1109/islc57752.2024.10717372)
• Albeladi, F. T. et al. 2024. InAs quantum dot-based one- and two-port multimode interference reflectors for integrated photonic devices: design, fabrication, and evaluation. Presented at: SPIE OPTO 2024, San Francisco, CA, USA, January 2024Proceedings Novel In-Plane Semiconductor Lasers XXIII, Vol. 12905. SPIE pp. 40., (10.1117/12.3003224)

2023

• Albeladi, F. T. et al. 2023. Low-loss III-V photonics and high efficiency grating couplers incorporating low-index AlOx layers. Presented at: 2023 IEEE Photonics Conference (IPC), 12-16 November 2023Proceedings 2023 IEEE Photonics Conference (IPC). IEEE, (10.1109/IPC57732.2023.10360787)
• Albeladi, F. T. et al. 2023. Multi-mode interference reflector for integrated photonics. Presented at: 2023 IEEE Photonics Conference (IPC), 12-16 November 2023Proceedings 2023 IEEE Photonics Conference (IPC). IEEE, (10.1109/IPC57732.2023.10360650)
• Enderson, A. et al. 2023. Monolithic InAs QDs based active-passive integration for photonic integrated circuits. Presented at: 2023 IEEE Photonics Conference (IPC), 12-16 November 2023Proceedings 2023 IEEE Photonics Conference (IPC). IEEE, (10.1109/IPC57732.2023.10360634)
• Al-Ghamdi, M. S., Almalky, N. M., Sait, R., Gillgrass, S. and Karomi, I. B. 2023. Effect of barrier layer width on the optical and spectral properties of InAsP/AlGaInP quantum dot lasers. Optical Materials 145, article number: 114475. (10.1016/j.optmat.2023.114475)
• Albeladi, F. T. et al. 2023. Realisation of multi-mode reflector lasers for integrated photonics. Presented at: Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 26-30 June 20232023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, (10.1109/CLEO/Europe-EQEC57999.2023.10231858)
• Albeladi, F. T. et al. 2023. Design and characterisation of multi-mode interference reflector lasers for integrated photonics. Journal of Physics D: Applied Physics 56(38), article number: 384001. (10.1088/1361-6463/acdb80)
• Gillgrass, S. J. et al. 2023. Impact of thermal oxidation uniformity on 150 mm GaAs- and Ge-substrate VCSELs. Journal of Physics D: Applied Physics 56(15), article number: 154002. (10.1088/1361-6463/acc040)
• Hentschel, C. et al. 2023. Gain measurements on VCSEL material using segmented contact technique. Journal of Physics D: Applied Physics 56(7), pp. 74003. (10.1088/1361-6463/acaf0b)

2022

• Albeladi, F. T. et al. 2022. Multi-mode interference reflector based InAs-QD laser. Presented at: 28th International Semiconductor Laser Conference (ISLC), Matsue, Japan, 16-19 October 2022Proceedings of 28th International Semiconductor Laser Conference (ISLC). IEEE, (10.23919/ISLC52947.2022.9943389)
• Baker, J. et al. 2022. VCSEL quick fabrication of 894.6 nm wavelength epi‐material for miniature atomic clock applications. IET Optoelectronics (10.1049/ote2.12082)
• Baker, J. et al. 2022. VCSEL quick fabrication for assessment of large diameter epitaxial wafers. IEEE Photonics Journal 14(3) (10.1109/JPHOT.2022.3169032)

2021

• Hentschel, C. et al. 2021. Gain measurements on vertical cavity surface emitting laser material using segmented contact technique. Presented at: 2021 IEEE Photonics Conference (IPC), 18-21 October 20212021 IEEE Photonics Conference (IPC). IEEE, (10.1109/IPC48725.2021.9592961)
• Baker, J., Gillgrass, S., Allford, C. P., Hentschel, C., Davies, J. I., Shutts, S. and Smowton, P. M. 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 2021Proceedings of the 2021 IEEE Photonics Conference (IPC). IEEE, (10.1109/IPC48725.2021.9592977)
• Maglio, B. et al. 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 20212021 IEEE Photonics Conference (IPC). IEEE pp. 1-2., (10.1109/IPC48725.2021.9592852)
• Baker, J. et al. 2021. Quick fabrication VCSELs for characterisation of epitaxial material. Applied Sciences 11(20), article number: 9369. (10.3390/app11209369)

2018

• Gillgrass, S. 2018. Laser haemocytometer. PhD Thesis, Cardiff University.
• Allford, C. P., Gillgrass, S., Al-Ghamdi, M. S., Krysa, A. B., Shutts, S. and Smowton, P. 2018. Barrier width effects in InAsP/AlGaInP quantum dot lasers. Presented at: UK Semiconductor Conference 2018 (UKSC 2018), Sheffield, UK, 4-5 July 2018.

2017

• Gillgrass, S., Thomas, R. and Smowton, P. M. 2017. Novel coupled-cavity sensing mechanism for on-chip detection of microparticles (Conference Presentation). Presented at: SPIE OPTO 2017, San Francisco, CA, USA, 28 Jan - 2 Feb 2017 Presented at Belyanin, A. A. and Smowton, P. eds.Proceedings Volume 10123, Novel In-Plane Semiconductor Lasers XVI, Vol. 10123. Society of Photo-Optical Instrumentation Engineers (SPIE), (10.1117/12.2253613)

2016

• Smowton, P. M. et al. 2016. Quantum dot lasers for integrated photonics. Presented at: 2016 International Semiconductor Laser Conference (ISLC), Kobe, Japan, 12-15 September 20162016 International Semiconductor Laser Conference (ISLC). IEEE

2015

• Thomas, R., Holton, M., Sobiesierski, A., Gillgrass, S., Summers, H. D., Barrow, D. and Smowton, P. M. 2015. Integrated III-V semiconductor flow cytometer with capillary fill micro-fluidics. Presented at: 2015 IEEE Photonics Conference (IPC), Reston, VA, USA, 4 - 8 October 2015IEEE Xplore. IEEE pp. 7-8., (10.1109/IPCon.2015.7323580)