Identifying single molecule based on the photon statistics
Peng Shuang-Yan, Huang Tao, Xiaobo Wang, Shao Jun-Hu, Xiao Liao-Tuan, Jia Suo-Tang, (1)量子光学与光量子器件国家重点实验室，山西大学物理电子工程学院，太原 030006; (2)量子光学与光量子器件国家重点实验室，山西大学物理电子工程学院，太原 030006;贵州毕节学院物理系，毕节 551700 · Acta Physica Sinica · 2005
We theoretically study the photon counting statistics characterizations of the real single molecular photon source with a Poisson statistics background and that of an ideal double molecular system based on the standard HBT detection. Mandel parameter Q of each source with the same mean photons n—was analyzed. We have obtained an efficient method to identify single molecule by the two-photon statistics probability P(2), which shows the relation P(2)2. Additionally, we studied the effect of single-to-background ratio of the single molecular photon source on the criterion.