Colour Centres in Aluminium Nitride are Bright, Room-Temperature Quantum Light Sources
- Resource Type
- Conference
- Authors
- Cannon, Joseph K.; Bishop, Sam G.; Guo, Yanzhao; Yagci, H. Bilge; Clark, Rachel N.; Hadden, John P.; Bennett, Anthony J.
- Source
- 2023 23rd International Conference on Transparent Optical Networks (ICTON) Transparent Optical Networks (ICTON), 2023 23rd International Conference on. :1-2 Jul, 2023
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Transportation
Stimulated emission
Refractive index
Color
Solids
Reflection
III-V semiconductor materials
Photonics
single photon
quantum emitter
colour centre
aluminium nitride
- Language
- ISSN
- 2161-2064
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.