Temporão Guilherme, Tanzilli Sébastien, Zbinden Hugo, Gisin Nicolas, Aellen Thierry, Giovannini Marcella, Faist Jérome
Group of Applied Physics, University of Geneva, 1211 Geneva 4, Switzerland.
Opt Lett. 2006 Apr 15;31(8):1094-6. doi: 10.1364/ol.31.001094.
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.
我们报告了一种通过基于和频产生的两阶段方案，利用周期性极化铌酸锂非线性晶体和硅雪崩光电二极管，在4.65微米波长处探测中红外单光子的方法。一项实验研究表明，除了具有高时间分辨率外，该技术在63毫瓦的净泵浦功率下产生的探测灵敏度为1.24皮瓦。
