Personal profile
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
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Collaborations and top research areas from the last five years
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Fraunhofer UK Research Limited: Studentship Agreement | Vijayakumar, Akhil Dutt
Rajbhandari, S. (Principal Investigator), Herrnsdorf, J. (Co-investigator) & Vijayakumar, A. D. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/01/26 → 1/07/29
Project: Research Studentship - Internally Allocated
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Advanced Network Connectivity using Harmonious Optical and Radio technologies (ANCHOR) HORIZON-MSCA-2024-DN-01
Rajbhandari, S. (Principal Investigator), Herrnsdorf, J. (Co-investigator), Li, D. (Co-investigator) & McKendry, J. (Co-investigator)
European Commission - Horizon Europe + H2020
1/01/26 → 31/01/29
Project: Research Fellowship
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Single pixel image classification using an ultrafast digital light projector
Kanwal, A., Johnstone, G. E., Dehkhoda, F., Herrnsdorf, J. H., Henderson, R. K., Dawson, M. D., Porte, X. & Strain, M. J., 12 Mar 2026, 14 p.Research output: Working paper/Preprint/Pre-registration › Working Paper/Preprint
Open AccessFile -
650 Mbps optical wireless communications using far-ultraviolet-C micro-light-emitting diode arrays
McKendry, J. J. D., Zimi, H., Rajbhandari, S., Ruschel, J., Rass, J., Einfeldt, S., Herrnsdorf, J. & Dawson, M. D., 22 Dec 2025, 2025 IEEE Photonics Conference (IPC). IEEE, p. 1-2 2 p. (2025 IEEE Photonics Conference (IPC)).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
Datasets
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Data for: "High-Speed Optical Camera Communications Using CMOS-driven Micro-LED Projector"
Shao, Y. (Creator), McKendry, J. (Creator), Dehkhoda, F. (Creator), Xie, E. (Creator), Herrnsdorf, J. (Creator), Strain, M. (Creator), Henderson, R. (Creator) & Dawson, M. (Creator), University of Strathclyde, 21 Nov 2022
DOI: 10.15129/d4163a0c-1cdf-4cb7-8b05-d05e0784eba2
Dataset
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Data for: "Size-Dependent Study of Ultraviolet-C Mini-/Micro-Light-Emitting Diodes"
Maclure, D. (Creator), McKendry, J. (Creator), Hill, J. (Creator), Xie, E. (Creator), Gu, E. (Contributor), Herrnsdorf, J. (Contributor) & Dawson, M. (Supervisor), University of Strathclyde, 30 May 2022
DOI: 10.15129/8c2da90b-b753-4782-8c6d-1d593aea0546, https://www.iwn2022.org/
Dataset
Prizes
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Highlights of 2017 in Semiconductor Science and Technolog
Rajbhandari, S. (Recipient), McKendry, J. (Recipient), Herrnsdorf, J. (Recipient), Chun, H. (Recipient), Faulkner, G. (Recipient), Haas, H. (Recipient), Watson, I. (Recipient), O'Brien, D. (Recipient) & Dawson, M. (Recipient), 2017
Prize: Other distinction
Activities
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Compact UV-C MicroLED Transmitter for Intersatellite Quantum Key Distribution
Herrnsdorf, J. (Contributor), Sagar, J. (Speaker), Jones, C. (Contributor), Willett, H. (Contributor), Rarity, J. (Contributor), McKendry, J. (Contributor), Gray, J. (Contributor), Hill, J. (Contributor), Xie, E. (Contributor), Oi, D. (Contributor) & Joshi, S. K. (Contributor)
17 Oct 2025Activity: Talk or Presentation › Oral presentation
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Deep Ultra-Violet Micro-Light-Emitting Diodes for Compact Quantum Key Distribution Transceivers
Herrnsdorf, J. (Speaker), McKendry, J. (Contributor), Xie, E. (Contributor), Hill, J. (Contributor), Gray, J. (Contributor), Blanchard, A. (Contributor), Sagar, J. (Contributor), Jones, C. (Contributor), Willett, H. (Contributor), Rarity, J. (Contributor), Joshi, S. K. (Contributor) & Oi, D. (Contributor)
31 Jul 2025Activity: Talk or Presentation › Invited talk