Mid-Infrared Single Photon Counting

Details Mid-Infrared Single Photon Counting Mid-Infrared Single Photon Counting

2005-11-29

arxiv.org/abs/quant-ph/0511254v1

Physics

Quantum Physics

9 pages, 2 figures, submitted to Optics Letters

Scientific paper

10.1364/OL.31.001094

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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