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Determination of signal-to-background ratio of single molecular photon source based on photon counting statistics

Wang Xiao-Bo Huang Tao Shao Jun-Hu Jiang Yu-Qiang Xiao Lian-Tuan Jia Suo-Tang

Determination of signal-to-background ratio of single molecular photon source based on photon counting statistics

Wang Xiao-Bo, Huang Tao, Shao Jun-Hu, Jiang Yu-Qiang, Xiao Lian-Tuan, Jia Suo-Tang
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  • Received Date:  07 April 2004
  • Accepted Date:  11 June 2004
  • Published Online:  05 January 2005

Determination of signal-to-background ratio of single molecular photon source based on photon counting statistics

  • 1. 山西大学物理电子工程学院,量子光学与光量子器件国家重点实验室,太原 030006

Abstract: The real triggered single molecule source is recognized as an ideal single photon source with a Poissonian statistics background. By considering the effect of the triplet state in single molecule energy level, an explicit function is given for the signaltobackgound ratio(SBR) by use of photoncounting statistics. When PRS(1)2PRS(2)-3PRS(2), we present an effici ent method to determine the SBR of the triggered single photons source, which s hows SBR=P2RS(1)/2PRS(2).In addition, the expression of Q, as a function of signaltobackgound ratio, has been obtained. It turns o ut that this method is simpler and gives a greater accuracy than previous proce dures.

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