Open AccessDetermination of signal-to-background ratio of single molecular photon source based on photon counting statistics
Author(s) -
Xiaobo Wang,
Huang Tao,
Jianda Shao,
Jiang Yu-Qiang,
Xiao Liu,
Jia Shi
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.617
Subject(s) - photon , physics , statistics , signal (programming language) , energy (signal processing) , function (biology) , ideal (ethics) , photon counting , atomic physics , quantum mechanics , mathematics , computer science , programming language , philosophy , epistemology , evolutionary biology , biology
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 signaltobackgound ratio(SBR) by use of photoncounting 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 signaltobackgound ratio, has been obtained. It turns o ut that this method is simpler and gives a greater accuracy than previous proce dures.