A Quantum Dot Single-Photon Turnstile Device

Author:

Michler P.1,Kiraz A.1,Becher C.1,Schoenfeld W. V.2,Petroff P. M.12,Zhang Lidong1,Hu E.12,Imamoglu A.134

Affiliation:

1. Department of Electrical and Computer Engineering,

2. Materials Department,

3. Department of Physics, University of California, Santa Barbara, CA 93106, USA.

4. Sabanci University, Orhanli 81474 Tuzla, Istanbul, Turkey.

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference26 articles.

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