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APS » Journals » Phys. Rev. Lett. » Volume 89 » Issue 23
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Phys. Rev. Lett. 89, 233602 (2002) [4 pages]

Efficient Source of Single Photons: A Single Quantum Dot in a Micropost Microcavity

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Matthew Pelton*, Charles Santori, Jelena Vuc̆ković, Bingyang Zhang†, Glenn S. Solomon‡, Jocelyn Plant, and Yoshihisa Yamamoto†
Quantum Entanglement Project, ICORP, JST, E. L. Ginzton Laboratory, Stanford University, Stanford, California 94305

Received 8 August 2002; published 13 November 2002

We have demonstrated efficient production of triggered single photons by coupling a single semiconductor quantum dot to a three-dimensionally confined optical mode in a micropost microcavity. The efficiency of emitting single photons into a single-mode traveling wave is approximately 38%, which is nearly 2 orders of magnitude higher than for a quantum dot in bulk semiconductor material. At the same time, the probability of having more than one photon in a given pulse is reduced by a factor of 7 as compared to light with Poissonian photon statistics.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.233602
DOI:
10.1103/PhysRevLett.89.233602
PACS:
42.50.Ct, 42.50.Dv, 78.67.Hc, 85.60.Jb

*Current address: Laboratory of Quantum Optics and Quantum Electronics, Department of Microelectronics and Information Technology, Royal Institute of Technology (KTH), Electrum 229, SE-164 40 Kista, Sweden.

Electronic address: pelton@imit.kth.se

†Also at NTT Basic Research Laboratories, Atsugishi, Kanagawa, Japan.

‡Also at Solid-State Photonics Laboratory, Stanford University, Stanford, CA 94305.

 
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