supported by the National Natural Science Foundation of China (Grant No. 60801046);National Basic re-search Pogram of China(Grant No.2009CB929602);Science and Technology Commission of Shanghai Municipality (Grant Nos. 08dz1400702 & 08PJ1411200)
Single photon detection is one of the key technologies for quantum key distribution in quantum communication. As a novel single photon detection technology, superconducting nanowire single photon detector (SNSPD) surp...