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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 11 — May. 23, 2011
  • pp: 10351–10358

Photon coincidences in spontaneous parametric down-converted radiation excited by a blue LED in bulk LiIO3 crystal

Justinas Galinis, Michał Karpiński, Gintaras Tamošauskas, Krzysztof Dobek, and Algis Piskarskas  »View Author Affiliations


Optics Express, Vol. 19, Issue 11, pp. 10351-10358 (2011)
http://dx.doi.org/10.1364/OE.19.010351


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Abstract

We report on experimental and numerical investigation of two-photon coincidence properties of the parametric spontaneous down-converted field excited by a high brightness blue LED in bulk lithium iodate crystal. Ratio of up to 11.5% of coincidence, which cannot be attributed to classical coincidences, to single photon counts was recorded at the outputs of multimode fibers, demonstrating well-preserved biphoton property. This result, combined with practically useful power of the source, suggests its possible application for a class of quantum experiments.

© 2011 OSA

OCIS Codes
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(230.3670) Optical devices : Light-emitting diodes
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Nonlinear Optics

History
Original Manuscript: February 17, 2011
Revised Manuscript: March 26, 2011
Manuscript Accepted: March 30, 2011
Published: May 11, 2011

Citation
Justinas Galinis, Michał Karpiński, Gintaras Tamošauskas, Krzysztof Dobek, and Algis Piskarskas, "Photon coincidences in spontaneous parametric down-converted radiation excited by a blue LED in bulk LiIO3 crystal," Opt. Express 19, 10351-10358 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-11-10351


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