Ultrafast electrical control of a resonantly driven single photon source

Journal Article · Mon Aug 04 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4892013· OSTI ID:22314472

Cao, Y. ^[1]; Ellis, D. J. P.; Shields, A. J. ^[1]; Farrer, I.; Ritchie, D. A. ^[2]

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1. Toshiba Research Europe Limited, Cambridge Research Laboratory, 208 Science Park, Milton Road, Cambridge CB4 0GZ (United Kingdom)
2. Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

We demonstrate generation of a pulsed stream of electrically triggered single photons in resonance fluorescence, by applying high frequency electrical pulses to a single quantum dot in a p-i-n diode under resonant laser excitation. Single photon emission was verified, with the probability of multiple photon emission reduced to 2.8%. We show that despite the presence of charge noise in the emission spectrum of the dot, resonant excitation acts as a “filter” to generate narrow bandwidth photons.

• OSTI ID: 22314472
• Journal Information: Applied Physics Letters, Vol. 105, Issue 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONTROL
EMISSION SPECTRA
EXCITATION
FLUORESCENCE
LASERS
PHOTONS
QUANTUM DOTS
SEMICONDUCTOR DIODES