CUED Publications database

Electrically driven and electrically tunable quantum light sources

Lee, JP and Murray, E and Bennett, AJ and Ellis, DJP and Dangel, C and Farrer, I and Spencer, P and Ritchie, DA and Shields, AJ (2017) Electrically driven and electrically tunable quantum light sources. Applied Physics Letters, 110. ISSN 0003-6951

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Abstract

© 2017 Author(s). Compact and electrically controllable on-chip sources of indistinguishable photons are desirable for the development of integrated quantum technologies. We demonstrate that two quantum dot light emitting diodes (LEDs) in close proximity on a single chip can function as a tunable, all-electric quantum light source. Light emitted by an electrically excited driving LED is used to excite quantum dots in the neighbouring diode. The wavelength of the quantum dot emission from the neighbouring driven diode is tuned via the quantum confined Stark effect. We also show that we can electri cally tune the fine structure splitting.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:11
Last Modified: 19 Sep 2017 01:29
DOI: