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背景噪声对单分子光子统计的影响 被引量:3

Effect of Background Noise on the Photon Statistics of Triggered Single Molecules
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摘要 我们利用HanburyBrown和Twiss探测方法来记录两个单光子计数器响应单分子源输出的每一个事件 ,直接计算触发式单分子光子源的Mandel参数Q。通过对触发式单分子源的Mandel参数QRS与含有相同平均光子数的具有Poisson分布的相干态的Mandel参数Qc进行比较来确定光子源统计分布特性。研究得到了一种计算触发式单光子源信噪比 (SBR)有效的方法。 In this paper,we directly derive exact expression for Mandel's Q parameter of the triggered single molecular source using the records of each photo detection event by two photoncounter based on Hanbury Brown and Twiss detection.The probability distribution for single photo source can be determined by comparing the Q RS of the real single triggered molecular with Q C of the Poissonian source and a coherent state light.We also get an efficient way to measure signal to background ratios of triggered single photons.
出处 《山西电子技术》 2004年第2期6-8,共3页 Shanxi Electronic Technology
基金 山西省留学归国基金项目编号 :10 174 0 4 7
关键词 背景噪声 单光子源 Mandel参数 死区时间 POISSON分布 信噪比 统计特性 photon statistics Mandel's parameter dead time poissonian statistics SBR
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