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Scientific article
Open access
English

Mid-infrared single-photon counting

Published inOptics letters, vol. 31, no. 8, 1094
Publication date2006
Abstract

We report a procedure to detect mid-infrared single photons at 4.65μm by means of a two-stage scheme based on sum-frequency generation, by using a periodically poled lithium niobate nonlinear crystal and a silicon avalanche photodiode. An experimental investigation shows that, in addition to a high timing resolution, this technique yields a detection sensitivity of 1.24pW with 63mW of net pump power.

Citation (ISO format)
TEMPORAO, Guilherme et al. Mid-infrared single-photon counting. In: Optics letters, 2006, vol. 31, n° 8, p. 1094. doi: 10.1364/OL.31.001094
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ISSN of the journal0146-9592
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