Absolute self-calibration of the quantum efficiency of single-photon detectors

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	Absolute self-calibration of the quantum efficiency of single-photon detectors
	Chang, JT ; Wu, LA
刊名	ACTA PHYSICA SINICA
	2003
卷号	52 期号:5 页码:1132
ISSN号	1000-3290
通讯作者	Chang, JT: Chinese Acad Sci, Inst Phys, Lab Opt Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	An absolute self-calibration method is proposed for determining the quantum efficiency of a single photon detector which does not require any standard reference or a second detector. The method is based on the time correlation of photon pairs generated in parametric downconversion. A beam of frequency downconverted photons is split at a polarizing beamsplitter then recombined at a second beamsplitter, but with a time delay introduced between them so that the two photons of an original pair enter the detector one by one. The photoelectric pulses from the detector are split into three paths; a compensating delay is introduced into two of the paths so that the two signals arrive simultaneously at a coincidence counter; the third path goes directly to a photon counter. From the ratio of the readings of the two counters we can derive the quantum efficiency of the detector. Two methods are given, one for continuous wave lasers and another for high repetition rate pulsed lasers.
收录类别	SCI
语种	中文
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33432]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Chang, JT,Wu, LA. Absolute self-calibration of the quantum efficiency of single-photon detectors[J]. ACTA PHYSICA SINICA,2003,52(5):1132.
APA	Chang, JT,&Wu, LA.(2003).Absolute self-calibration of the quantum efficiency of single-photon detectors.ACTA PHYSICA SINICA,52(5),1132.
MLA	Chang, JT,et al."Absolute self-calibration of the quantum efficiency of single-photon detectors".ACTA PHYSICA SINICA 52.5(2003):1132.