Dr Sara-Jayne Gillgrass

2026

• Shamoushaki, M. et al., 2026. Toxicity and energy intensity impacts in the supply chain sustainability of InGaN and InGaP semiconductor technologies. Energy Conversion and Management: X 31 102049. (10.1016/j.ecmx.2026.102049)
• Yu, X. A. et al., 2026. Integrating environmental and resilience metrics for sustainable material substitution in compound semiconductor laser manufacturing. International Journal of Production Research (10.1080/00207543.2026.2728018)
• Allford, C. P. et al. 2026. On-wafer characterisation of 1300 nm InAs quantum dot laser uniformity over 150 mm substrates. Journal of Physics D: Applied Physics 59 335102. (10.1088/1361-6463/ae961f)
• Allford, C. P. et al. 2026. All-electrical measurement of VCSEL lateral oxidation extent. IEEE Journal of Selected Topics in Quantum Electronics , pp.1-9. (10.1109/jstqe.2026.3716588)
• Albeladi, F. T. et al., 2026. On-chip single-output InAs quantum dot DFB laser for photonic integration. Optics Express 34 (14), pp.25538-25548. (10.1364/OE.604147)
• Obuseli, I. O. F. et al. 2026. 1390 nm GaAs-based dilute nitride VCSELs on 150 mm wafers for scalable production. Optics Express 34 , pp.19865-19877. (10.1364/OE.595959)
• Shamoushaki, M. et al., 2026. Geo-spatial prospective life cycle sustainability of InGaN and InGaP compound semiconductors. Scientific Reports 16 13659. (10.1038/s41598-026-43622-5)
• Baker, J. et al. 2026. High-temperature continuous wave operation of oxide-confined VCSELs. Semiconductor Science and Technology 41 (2) 025013. (10.1088/1361-6641/ae3e12)

2025

• Baker, J. et al. 2025. Monolithically-integrated quantum dot optical power monitor. Presented at: IPC 2025 Singapore 9-13 November 2025. Proceedings 2025 IEEE Photonics Conference (IPC). IEEE(10.1109/ipc65510.2025.11282214)
• Albeladi, F. T. et al. 2025. On-chip gain elements for integrated photonics. Optics Express 33 (25), pp.52356-52372. (10.1364/OE.573505)
• Albeladi, F. et al. 2025. Single-output InAs Quantum Dot DFB Laser using integrated MMIR for photonic applications. Presented at: IPC 2025 Singapore 9-13 November 2025. 2025 IEEE Photonics Conference (IPC). IEEE(10.1109/ipc65510.2025.11282162)
• Gillgrass, S. J. et al. 2025. AlGaAs VSCELs grown on thin 150 mm germanium substrates. JPhys: Photonics 7 (3) 035033. (10.1088/2515-7647/adef1f)
• Mishra, P. et al. 2025. Achieving selectivity and reduced absorption for low loss monolithic InAs QD based III-V photonic integration. Journal of Physics D: Applied Physics 58 (26) 265104. (10.1088/1361-6463/ade450)
• Mishra, P. et al. 2025. High temperature operation of co-doped InAs quantum dot laser for O-band emission. IEEE Photonics Journal 17 (3) 0600606. (10.1109/jphot.2025.3560443)
• Baker, J. et al. 2025. Thermal performance of 940 nm AlGaAs-Based VCSELs grown on germanium. IEEE Photonics Journal 17 (2) 1501104. (10.1109/jphot.2025.3552951)
• Baker, J. et al. 2025. Internal turn-off temperature of oxide-confined VCSELs. Presented at: IPC 2025 Singapore 9-13 November 2025. 2025 IEEE Photonics Conference (IPC). IEEE(10.1109/ipc65510.2025.11282067)

2024

• Albeladi, F. T. et al. 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 2024. 2024 IEEE Photonics Conference (IPC). IEEE(10.1109/ipc60965.2024.10799723)
• 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 2024. 2024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE. , pp.1-2. (10.1109/islc57752.2024.10717359)
• Albeladi, F. et al. 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 2024. 2024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE. , pp.1-2. (10.1109/islc57752.2024.10717372)
• Baker, J. et al. 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 2024. 2024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE. , pp.1-2. (10.1109/islc57752.2024.10717337)
• Gillgrass, S. et al. 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 2024. 2024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE(10.1109/islc57752.2024.10717349)
• 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 2024. 2024 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 2024. 2024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE. , pp.1-2. (10.1109/islc57752.2024.10717409)
• 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 2024. Proceedings 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 2023. Proceedings 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 2023. Proceedings 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 2023. Proceedings 2023 IEEE Photonics Conference (IPC). IEEE. (10.1109/IPC57732.2023.10360634)
• Al-Ghamdi, M. S. et al., 2023. Effect of barrier layer width on the optical and spectral properties of InAsP/AlGaInP quantum dot lasers. Optical Materials 145 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 2023. 2023 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) 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) 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.074003. (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 2022. Proceedings 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

• Baker, J. et al. 2021. Sub-mA threshold current vertical cavity surface emitting lasers with a simple fabrication process. Presented at: 2021 IEEE Photonics Conference (IPC) Vancouver, BC, Canada 18-21 October 2021. Proceedings of the 2021 IEEE Photonics Conference (IPC). IEEE. (10.1109/IPC48725.2021.9592977)
• 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) Vancouver, BC, Canada 18-21 October 2021. 2021 IEEE Photonics Conference (IPC). IEEE. (10.1109/IPC48725.2021.9592961)
• 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 2021. 2021 IEEE Photonics Conference (IPC). IEEE(10.1109/IPC48725.2021.9592852)
• Baker, J. et al. 2021. Quick fabrication VCSELs for characterisation of epitaxial material. Applied Sciences 11 (20) 9369. (10.3390/app11209369)

2018

• Gillgrass, S. 2018. Laser haemocytometer. PhD Thesis , Cardiff University.
• Allford, C. P. et al. 2018. Barrier width effects in InAsP/AlGaInP quantum dot lasers [Abstract]. 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. Published in: 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 2016. 2016 International Semiconductor Laser Conference (ISLC). IEEE.

2015

• Thomas, R. et al. 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 2015. IEEE Xplore. IEEE. , pp.7-8. (10.1109/IPCon.2015.7323580)