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Proceedings Paper

Room-temperature solid state quantum emitters in the telecom range in GaN and SiC (Conference Presentation)
Author(s): Weibo Gao; Yu Zhou

Paper Abstract

On demand single photon emitters (SPEs) play a key role across a broad range of quantum technologies, including quantum computation, quantum simulation quantum metrology and quantum communications. In quantum networks and quantum key distribution protocols, where photons are employed as flying qubits, telecom wavelength operation is preferred due to the reduced fibre loss. However, despite the tremendous efforts to develop various triggered SPE platforms, a robust source of triggered SPEs operating at room temperature and the telecom wavelength is still missing. Here we report a triggered, optically stable, room temperature solid state SPE operating at telecom wavelengths. The emitters exhibit high photon purity (~ 5% multiphoton events) and a record-high brightness of ~ 1.5 MHz. The emission is attributed to localized defects in a gallium nitride (GaN) crystal. The high performance SPEs embedded in a technologically mature semiconductor are promising for on-chip quantum simulators and practical quantum communication technologies.

Paper Details

Date Published: 18 September 2018
Proc. SPIE 10733, Quantum Photonic Devices 2018, 1073302 (18 September 2018); doi: 10.1117/12.2323848
Show Author Affiliations
Weibo Gao, Nanyang Technological Univ. (Singapore)
Yu Zhou, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 10733:
Quantum Photonic Devices 2018
Cesare Soci; Mario Agio; Kartik Srinivasan, Editor(s)

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