Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 22 December 2000:
Vol. 290. no. 5500, pp. 2282 - 2285
DOI: 10.1126/science.290.5500.2282
Prev | Table of Contents | Next

Reports

A Quantum Dot Single-Photon Turnstile Device

P. Michler,1* A. Kiraz,1 C. Becher,1 W. V. Schoenfeld,2 P. M. Petroff,12 Lidong Zhang,1 E. Hu,12 A. Imamoğlu134dagger

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.

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.
*   Present address: Institut für Festkörperphysik, Universität Bremen, Post Office Box 330440, D-28334 Bremen, Germany.

dagger    To whom correspondence should be addressed. E-mail: atac{at}ece.ucsb.edu

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Higher-Order Photon Bunching in a Semiconductor Microcavity.
M. Assmann, F. Veit, M. Bayer, M. van der Poel, and J. M. Hvam (2009)
Science 325, 297-300
   Abstract »    Full Text »    PDF »
Quantum-Dot Spin-State Preparation with Near-Unity Fidelity.
M. Atature, J. Dreiser, A. Badolato, A. Hogele, K. Karrai, and A. Imamoglu (2006)
Science 312, 551-553
   Abstract »    Full Text »    PDF »
Resonant Optical Antennas.
P. Muhlschlegel, H.-J. Eisler, O. J. F. Martin, B. Hecht, and D. W. Pohl (2005)
Science 308, 1607-1609
   Abstract »    Full Text »    PDF »
Deterministic Coupling of Single Quantum Dots to Single Nanocavity Modes.
A. Badolato, K. Hennessy, M. Atature, J. Dreiser, E. Hu, P. M. Petroff, and A. Imamoglu (2005)
Science 308, 1158-1161
   Abstract »    Full Text »    PDF »
Deterministic Generation of Single Photons from One Atom Trapped in a Cavity.
J. McKeever, A. Boca, A. D. Boozer, R. Miller, J. R. Buck, A. Kuzmich, and H. J. Kimble (2004)
Science 303, 1992-1994
   Abstract »    Full Text »    PDF »
Electrically Driven Single-Photon Source.
Z. Yuan, B. E. Kardynal, R. M. Stevenson, A. J. Shields, C. J. Lobo, K. Cooper, N. S. Beattie, D. A. Ritchie, and M. Pepper (2002)
Science 295, 102-105
   Abstract »    Full Text »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)