相关光子符合计数的实现及修正

吕亮; 林延东

doi:10.3788/OPE.20111905.1005

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相关光子符合计数的实现及修正

现代应用光学 | 更新时间：2020-08-12

- 相关光子符合计数的实现及修正
- Realization and correction of coincidence counting setup used in correlated photon detection
- 光学精密工程 2011年19卷第5期页码：1005-1012
- 作者机构：
  
  1. 北京理工大学光电学院北京,中国,100081
  2. 中国计量科学研究院光学所北京,100013
- 作者简介：
- 基金信息：
  
  国家科技部科技支撑项目(No.2006BAF06B05)()
- DOI：10.3788/OPE.20111905.1005
  中图分类号： TP211.6;TH724
- 收稿日期：2010-10-27，
  
  修回日期：2010-12-10，
  
  网络出版日期：2011-05-26，
  
  纸质出版日期：2011-05-26
- 稿件说明：
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吕亮, 林延东. 相关光子符合计数的实现及修正[J]. 光学精密工程, 2011,19(5): 1005-1012

L Liang, LIN Yan-dong. Realization and correction of coincidence counting setup used in correlated photon detection[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 1005-1012
吕亮, 林延东. 相关光子符合计数的实现及修正[J]. 光学精密工程, 2011,19(5): 1005-1012 DOI： 10.3788/OPE.20111905.1005.

L Liang, LIN Yan-dong. Realization and correction of coincidence counting setup used in correlated photon detection[J]. Editorial Office of Optics and Precision Engineering, 2011,19(5): 1005-1012 DOI： 10.3788/OPE.20111905.1005.

摘要

为了实现利用非线性晶体自发参量下转换(SPDC)产生的相关光子测量光电探测器量子效率

对相关光子符合计数装置的设计及符合计数方法的系统修正进行了研究。介绍了SPDC相关光子的产生机理以及利用其进行光电探测器量子效率测量的原理。设计了两种不同的符合计数装置

"门控双通道光子符合计数装置"和"基于TAC/MCA的符合计数装置"。分析了两种计数装置符合结果的偶然符合、丢失符合、符合器死时间、探测器死时间等误差

并分别给出了修正因子及修正因子的计算和测量方法。结果表明:修正后两种方法量子效率测量结果的一致性<0.4%

均能满足量子效率符合测量的需要

提出的修正方法也具有很好的可操作性。

Abstract

With the aim to realize Quantum Efficiency(QE) measurement of photon detectors based on Spontaneous Parametric Down-conversion(SPDC)

two type of coincidence count systems were set up

the correction factors of coincidence count were analyzed and the real experimental methods of correction factors were given. Firstly

the principle of SPDC and the technique using SPDC to calibrate the QE of photo detectors were introduced. Then the design of two type of coincidence count systems

gated dual-photon counter coincidence count system and TAC/MCA coincidence count system

were introduced. Finally

the main correction factors

accidental coincidence

missing coincidence

dead time of counters and detectors were analyzed

and the calculation and test methods were also given. Experimental results show that the deviation between this two type of coincidence setups is less than 0.4% after correction

which indicates that the two setups can satisfy the requirement of QE measurement.

关键词

Keywords

references

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