Colour centres in aluminium nitride are bright, room-temperature quantum light sources

Cannon, Joseph K., Bishop, Sam G., Guo, Yanzhao, Yagci, H. Bilge ORCID: https://orcid.org/0000-0002-8992-2292, Clark, Rachel N., Hadden, John P. ORCID: https://orcid.org/0000-0001-5407-6754 and Bennett, Anthony J. ORCID: https://orcid.org/0000-0002-5386-3710 2023. Colour centres in aluminium nitride are bright, room-temperature quantum light sources. Presented at: 23rd International Conference on Transparent Optical Networks ICTON 2023, Bucharest, Romania, 2-6 July 2023. Published in: Jaworski, Marek and Marciniak, Marian eds. Proceedings of 23rd International Conference on Transparent Optical Networks. pp. 1-2. 10.1109/ICTON59386.2023.10207363

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Abstract

Red colour centres in AlN are bright room-temperature quantum light sources emitting anti-bunched light under optical excitation. We study the temporal, spectral and polarisation behaviour of emitters in commercially supplied AlN on sapphire. The high refractive index limits the photon collection efficiency for a lens above the sample, through refraction and total internal reflection. Applying a macroscopic solid immersion lens which is almost index matched to the semiconductor we achieve a 4.2-fold increase in collection efficiency, yielding nearly one megacount per second detected photon rate.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Advanced Research Computing @ Cardiff (ARCCA) Engineering
ISBN:	9798350303032
ISSN:	2162-7339
Last Modified:	08 Jan 2025 22:19
URI:	https://orca.cardiff.ac.uk/id/eprint/163378

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