Professor Michael Strain

Institute of Photonics

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Personal statement

My research group has expertise in the design and micro-fabrication of Photonic Integrated Circuit (PIC) technologies across a wide range of material platforms.  We develop new materials for specialist applications and collaborate with industrial partners to ensure the future scalability and foundry compatability of these techniques.

 

Silicon PICs: I have a significant background in the design and micro-fabrication of integrated silicon photonics and have developed devices for applications from sensing and information processing, to cavity-enhanced non-linear interactions and quantum optics.  In particular I am interested in the development of scalable PICs that can be easily electronically tuned and addressed with simple fibre optics and am developing technologies to take this technology from device to systems levels.  This work is supported by strong collaboration with the James Watt Nanofabrication Centre at the University of Glasgow.  

Future Materials:  Not all optical functions can be realised with standard foundry material platforms such as silicon and InP.  We develop new material systems for specific applications, such as ultra-thin-film diamond for quantum optics, together with the advanced micro-processing required to create optical devices.  We have interests in single crystal diamond, III-nitrides and complex oxide materials.

Heterogeneous Integration:  Many integrated photonic material platforms have particular strengths (e.g. III-V's for light generation and detection) but are limited in complimentary areas.  In this work we seek to marry different materials in single systems to make best use of the material properties where they are needed in PICs.  For example, by locally bonding III-V materials to silicon waveguides, the light generation of the III-V's can be created where necessary in a low-loss complex silicon PIC.  

This technique also allows photonic integration of specialist materials like diamond with standard PIC technology, giving flexibility in circuit design and the prospect for scaling where materials are scarce and monlithic PIC technology is prohibitive.  Other areas of interest are hetereogeneous PICs for mid-IR applications.

Micro-LED imaging arrays: We are developing high speed LED displays with pixel dimensions of only a few tens of microns.  These devices are used for data transmission (Gb/s), covert imaging and the control and navigation of autonomous robotic agents without the need for electrical signal transmission links.   

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Publications

Micro-LED nanosecond pulsed structured light sources with 405 nm – 510 nm wavelength
Gray JA, McKendry JJD, Herrnsdorf JH, Strain MJ, Henderson RK, Dawson MD
2023 IEEE Photonics Conference (IPC) 2023 IEEE Photonics Conference (IPC)
IEEE Photonics Conference (IPC) (2023)
https://doi.org/10.1109/IPC57732.2023.10360550
High speed single pixel imaging with advanced microLED digital light projector
Johnstone GE, Bennett S, Murray P, Dehkhoda F, Henderson RK, Herrnsdorf J, Dawson MD, Strain MJ
2023 IEEE Photonics Conference (IPC) 2023 IEEE Photonics Conference (IPC)
IEEE Photonics Conference (IPC) (2023)
https://doi.org/10.1109/IPC57732.2023.10360536
Scalable optical excitation and modulation of semiconductor nanowire emitters
Xia Zhongyi, Jevtics Dimitars, Guilhabert Benoit, McKendry Jonathan JD, Tan Hark Hoe, Jagadish Chennupati, Dawson Martin D, Strain Michael J
British and Irish Conference on Optics and Photonics 2023 (2023)
Waveguide-integrated colloidal nanocrystal supraparticle lasers
Alves Pedro Urbano, Guilhabert Benoit J E, McPhillimy John R, Jevtics Dimitars, Strain Michael J, Hejda Matěj, Cameron Douglas, Edwards Paul R, Martin Robert W, Dawson Martin D, Laurand Nicolas
ACS Applied Optical Materials Vol 1, pp. 1836-1846 (2023)
https://doi.org/10.1021/acsaom.3c00312
Additive GaN solid immersion lenses for enhanced photon extraction efficiency from diamond color centers
Cheng Xingrui, Wessling Nils Kolja, Ghosh Saptarsi, Kirkpatrick Andrew R, Kappers Menno J, Lekhai Yashna N D, Morley Gavin W, Oliver Rachel A, Smith Jason M, Dawson Martin D, Salter Patrick S, Strain Michael J
ACS Photonics Vol 10, pp. 3374-3383 (2023)
https://doi.org/10.1021/acsphotonics.3c00854
Foundry SiN as a platform for heterogeneous integration at visible wavelengths
Smith Jack A, Li Zhibo, Ghosh Saprtarsi, Francis Henry, Navickaite Gabriele, McKnight Loyd J, Oliver Rachel A, Dawson Martin D, Strain Michael J
2023 IEEE Photonics Society Summer Topicals Meeting Series (SUM) 2023 IEEE Photonics Society Summer Topicals Meeting Series (SUM) (2023)
https://doi.org/10.1109/sum57928.2023.10224480

More publications

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Research Interests

  • Silicon Photonic Integrated Circuits (in the near and mid-IR)
  • Heterogeneous integration (e.g. III-V on SOI)
  • Wide-bandgap integrated optics (diamond, GaN)
  • Waveguide and on-chip resonators for NLO
  • III-V micro-lasers
  • Chip-scale vector beam sources
  • Structured illumination for imaging and data comms.

Professional Activities

Recent developments in gallium nitride micro-light-emitting diode structured light sources
Contributor
8/12/2020
Hetero-print: A holistic approach to transfer-printing for heterogeneous integration in manufacturing
Invited speaker
4/10/2020
Integration of an LED/SPAD Optical Wireless Transceiver with CubeSat On-board Systems
Contributor
28/9/2020
Combined Time of Flight and Photometric Stereo Imaging for Surface Reconstruction
Contributor
28/9/2020
LED excitation of an on-chip imaging flow cytometer for bead-based immunoassay
Contributor
28/9/2020
Micro-LEDs for technological convergence between displays, optical communications, and sensing and imaging systems
Contributor
12/8/2020

More professional activities

Projects

DTP 2224 University of Strathclyde | Wilson, Matthew
Strain, Michael (Principal Investigator) Porte Parera, Javier (Co-investigator) Wilson, Matthew (Research Co-investigator)
01-Jan-2023 - 01-Jan-2027
Generation of entAngLement for quAntum seCure mulTIparty Computation
Strain, Michael (Principal Investigator) Caspani, Lucia (Co-investigator)
01-Jan-2023 - 30-Jan-2025
Fraunhofer UK Research Limited: Studentship Agreement | Wilson, Matthew
Strain, Michael (Principal Investigator) Porte Parera, Javier (Co-investigator) Wilson, Matthew (Research Co-investigator)
01-Jan-2023 - 01-Jan-2027
Structured light projection for FLIM in scattering environments (QUANTIC)
Strain, Michael (Principal Investigator) Dawson, Martin (Co-investigator) Herrnsdorf, Johannes (Co-investigator)
01-Jan-2023 - 30-Jan-2024
Fraunhofer UK Research Limited: Studentship Agreement | Adnan, A
Strain, Michael (Principal Investigator) Caspani, Lucia (Co-investigator) Adnan, A (Research Co-investigator)
01-Jan-2022 - 01-Jan-2026
A packaged source of multiplexed entangled photons
Caspani, Lucia (Principal Investigator) Strain, Michael (Co-investigator)
01-Jan-2022 - 30-Jan-2025

More projects

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Contact

Professor Michael Strain
Institute of Photonics

Email: michael.strain@strath.ac.uk
Tel: 548 4703