Dr Johannes Herrnsdorf

Senior Lecturer

Institute of Photonics

Personal statement

Dr. Johannes Herrnsdorf is a research associate at the Institute of Photonics. His main interests are the exploration of the physics of gallium nitride micro-LEDs and their development towards a wide range of applications including communications and imaging.

His research has equipped him with a broad background in semiconductor-based photonics, including solution processible organic and inorganic materials for colour conversion and lasers, and semiconductor devices for operation from the ultra-violet through to the near infrared wavelengths. He currently focusses on structured digital illumination, which is scalable from microscopic through to kilometre ranges, and on the few-photon operation of LED-enabled optical links. Dr Herrnsdorf has been awarded an EPSRC UKRI Innovation Fellowship to support his work on structured illumination and digital lighting at the few-photon level.

Scopus profile:
https://www.scopus.com/authid/detail.uri?authorId=35279751900

Google scholar profile:
https://scholar.google.com/citations?user=CjepYEMAAAAJ&hl=en

Publications

Back to staff profile

Publications

Simultaneous data display and environment sensing with a MicroLED display: Gray JA, McKendry JJD, Henderson RK, Strain MJ, Dawson MD, Herrnsdorf J; 2024 IEEE Photonics Conference (IPC) IEEE Photonics Conference 2024 2024 IEEE Photonics Conference (IPC), pp. 1-2 (2024); https://doi.org/10.1109/ipc60965.2024.10799779
235 nm and 255 nm LEDs for 10’s to 100’s Mbps UV-C communications up to 15 meters: Zimi H, McKendry JJD, Babadi S, Majlesein B, Herrnsdorf J, Haas H, Dawson MD; 2024 IEEE Photonics Conference (IPC) IEEE Photonics Conference 2024 2024 IEEE Photonics Conference (IPC), pp. 1-2 (2024); https://doi.org/10.1109/ipc60965.2024.10799544
Beyond 10 Gigabit/s visible light communication using micro-light-emitting diodes and orthogonal frequency division multiplexing: McKendry Jonathan JD, Chen Cheng, MacLure Daniel, Hill Jordan, Xie Enyuan, Tavakkolnia Iman, Herrnsdorf Johannes, Haas Harald, Dawson Martin D; IET Conference Proceedings Vol 2023, pp. 1760-1763 (2024); https://doi.org/10.1049/icp.2024.1809
High speed single pixel imaging using a MicroLED-on-CMOS light projector: Johnstone G E, Gray J, Bennett S, Johnson S D, Higham C F, Dehkhoda F, Xie E, Herrnsdorf J, Murray P, Padgett M J, Murray-Smith  R, Henderson R K, Dawson M D, Strain M J; Optics Express Vol 32, pp. 24615-24628 (2024); https://doi.org/10.1364/OE.525753
GaN-based series hybrid LED array : a dual-function light source with illumination and high-speed visible light communication capabilities: Xie Enyuan, Cheng Chen, Ouyang Chengsui, Hill Jordan, McKendry Jonathan JD, Zhang Yanchao, Gu Erdan, Herrnsdorf Johannes, Haas Harald, Dawson Martin D; Journal of Lightwave Technology Vol 42, pp. 243-250 (2024); https://doi.org/10.1109/JLT.2023.3303779
Deep ultraviolet CMOS-controlled micro light-emitting diode array: McKendry Jonathan JD, Xie Enyuan, Hill Jordan, Zimi Hichem, Herrnsdorf Johannes, Gu Erdan, Henderson Robert K, Dawson Martin D; IEEE Photonics Journal Vol 15, pp. 1-6 (2023); https://doi.org/10.1109/JPHOT.2023.3330571

More publications

Research

Back to staff profile

Professional Activities

SCDT proposal development: Contributor; 13/2/2023
International Workshop on Nitride Semiconductors 2022: Participant; 10/11/2022
Recent developments in gallium nitride micro-light-emitting diode structured light sources: Contributor; 8/12/2020
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
Micro-LEDs for technological convergence between displays, optical communications, and sensing and imaging systems: Contributor; 12/8/2020

More professional activities

Projects

TITAN Extension. Integration of high-speed micro-LED transmitters with reconfigurable intelligent surfaces (micro-LED RIS): Herrnsdorf, Johannes (Principal Investigator) Dawson, Martin (Co-investigator); 01-Jan-2024 - 31-Jan-2025
plaTform drIving The ultimAte coNnectivity (TITAN) (Future Communications Systems Hub): Haas, Harald (Principal Investigator) Dawson, Martin (Co-investigator) Herrnsdorf, Johannes (Co-investigator) Tavakkolnia, Iman (Co-investigator); 01-Jan-2023 - 30-Jan-2026
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
MicroLED Communications for High Altitude Pseudo Satellites: Herrnsdorf, Johannes (Principal Investigator); 01-Jan-2023 - 28-Jan-2025
HYDRI - HYDrogen sensoR for Industry: Herrnsdorf, Johannes (Principal Investigator) Li, David (Co-investigator); 01-Jan-2022 - 31-Jan-2025
Doctoral Training Partnership 2020-2021 University of Strathclyde | Gray, Johnathan: Herrnsdorf, Johannes (Principal Investigator) Dawson, Martin (Co-investigator) Gray, Johnathan (Research Co-investigator); 01-Jan-2021 - 01-Jan-2025