Open AccessNon-polar nitride single-photon sources
Author(s) -
Tong Wang,
Rachel A. Oliver,
Robert A. Taylor
Publication year - 2020
Publication title -
journal of optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 95
eISSN - 2040-8986
pISSN - 2040-8978
DOI - 10.1088/2040-8986/ab97c2
Subject(s) - photon , nitride , polar , ultrashort pulse , materials science , optics , optoelectronics , exciton , physics , laser , nanotechnology , condensed matter physics , quantum mechanics , layer (electronics)
Non-polar nitride single-photon sources are developed in order to minimise the undesired side effects caused by the internal fields of polar nitrides, while retaining the benefits of high-temperature single-photon generation from a semiconductor quantum dot platform. As a relatively newer single-photon source, several reports have already been made highlighting their interesting optical and photophysical properties. These include an average ultrafast radiative exciton recombination lifetime of <200 ps, an average slow-timescale spectral diffusion of <40 μ eV, polarisation-controlled single-photon generation up to 220 K, and temperature-dependent fine-structure splitting. In this review, the photophysics, improvement of optical properties, and future of non-polar nitride single-photon sources will be closely examined based on current reports in the literature.