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Mid-Infrared Single Photon Counting

Guilherme Temporao·Sebastien Tanzilli·Hugo Zbinden·Nicolas Gisin·Thierry Aellen·Marcella Giovannini·Jerome Faist
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Abstract

We report a procedure to detect mid-infrared single photons at 4.65 um via a two-stage scheme based on Sum Frequency Generation, using a Periodically Poled Lithium Niobate (PPLN) 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 1.24 pW with 63mW of net pump power.

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Guilherme Temporao, Sebastien Tanzilli, Hugo Zbinden, Nicolas Gisin, Thierry Aellen, Marcella Giovannini, Jerome Faist. 2005-11-29. Mid-Infrared Single Photon Counting. https://doi.org/10.1364/ol.31.001094

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