A quantum dot single-photon turnstile device |
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| Authors: | Michler P Kiraz A Becher C Schoenfeld W V Petroff P M Zhang L Hu E Imamoglu A |
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| Institution: | Department of Electrical and Computer Engineering, University of California, Santa Barbara, CA 93106, USA. |
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| Abstract: | Quantum communication relies on the availability of light pulses with strong quantum correlations among photons. An example of such an optical source is a single-photon pulse with a vanishing probability for detecting two or more photons. Using pulsed laser excitation of a single quantum dot, a single-photon turnstile device that generates a train of single-photon pulses was demonstrated. For a spectrally isolated quantum dot, nearly 100% of the excitation pulses lead to emission of a single photon, yielding an ideal single-photon source. |
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