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. 2013 Mar 1;38(5):649-51.
doi: 10.1364/OL.38.000649.

Heralded Single-Photon Source in a III-V Photonic Crystal

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Heralded Single-Photon Source in a III-V Photonic Crystal

Alex S Clark et al. Opt Lett. .

Abstract

In this Letter we demonstrate heralded single-photon generation in a III-V semiconductor photonic crystal platform through spontaneous four-wave mixing. We achieve a high brightness of 3.4×10(7) pairs·s(-1) nm(-1) W(-1) facilitated through dispersion engineering and the suppression of two-photon absorption in the gallium indium phosphide material. Photon pairs are generated with a coincidence-to-accidental ratio over 60 and a low g(2) (0) of 0.06 proving nonclassical operation in the single photon regime.

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