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Ultrafast electrical control of a resonantly driven single photon source

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  • Yameng Cao
  • Anthony J. Bennett
  • David Ellis
  • Ian Farrer
  • David A. Ritchie
  • Andrew J. Shields
Article number051112
<mark>Journal publication date</mark>4/08/2014
<mark>Journal</mark>Applied Physics Letters
Issue number5
Publication StatusPublished
<mark>Original language</mark>English


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.