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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 4 — Feb. 24, 2014
  • pp: 4789–4798

Efficiency vs. multi-photon contribution test for quantum dots

Ana Predojević, Miroslav Ježek, Tobias Huber, Harishankar Jayakumar, Thomas Kauten, Glenn S. Solomon, Radim Filip, and Gregor Weihs  »View Author Affiliations

Optics Express, Vol. 22, Issue 4, pp. 4789-4798 (2014)

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The development of linear quantum computing within integrated circuits demands high quality semiconductor single photon sources. In particular, for a reliable single photon source it is not sufficient to have a low multi-photon component, but also to possess high efficiency. We investigate the photon statistics of the emission from a single quantum dot with a method that is able to sensitively detect the trade-off between the efficiency and the multi-photon contribution. Our measurements show, that the light emitted from the quantum dot when it is resonantly excited possess a very low multi-photon content. Additionally, we demonstrated, for the first time, the non-Gaussian nature of the quantum state emitted from a single quantum dot.

© 2014 Optical Society of America

OCIS Codes
(000.1600) General : Classical and quantum physics
(270.0270) Quantum optics : Quantum optics
(270.5290) Quantum optics : Photon statistics

ToC Category:
Coherence and Statistical Optics

Original Manuscript: January 2, 2014
Revised Manuscript: February 11, 2014
Manuscript Accepted: February 13, 2014
Published: February 21, 2014

Ana Predojević, Miroslav Ježek, Tobias Huber, Harishankar Jayakumar, Thomas Kauten, Glenn S. Solomon, Radim Filip, and Gregor Weihs, "Efficiency vs. multi-photon contribution test for quantum dots," Opt. Express 22, 4789-4798 (2014)

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