Journal article

Mid-infrared single-photon counting.

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  • 2006-04-22
Published in:
  • Optics letters. - 2006
English We report a procedure to detect mid-infrared single photons at 4.65 microm 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 1.24 pW with 63 mW of net pump power.
Language
  • English
Open access status
green
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Persistent URL
https://sonar.rero.ch/global/documents/221116
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