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利用多像素光子计数器的光学串话效应提高光子探测效率

刘丽娜 张国青

刘丽娜, 张国青. 利用多像素光子计数器的光学串话效应提高光子探测效率[J]. 中国光学(中英文), 2015, 8(2): 205-210. doi: 10.3788/CO.20150802.0205
引用本文: 刘丽娜, 张国青. 利用多像素光子计数器的光学串话效应提高光子探测效率[J]. 中国光学(中英文), 2015, 8(2): 205-210. doi: 10.3788/CO.20150802.0205
LIU Li-na, ZHANG Guo-qing. Increasing the photon detection efficiency by the optical crosstalk effect of multi-pixel photon counter[J]. Chinese Optics, 2015, 8(2): 205-210. doi: 10.3788/CO.20150802.0205
Citation: LIU Li-na, ZHANG Guo-qing. Increasing the photon detection efficiency by the optical crosstalk effect of multi-pixel photon counter[J]. Chinese Optics, 2015, 8(2): 205-210. doi: 10.3788/CO.20150802.0205

利用多像素光子计数器的光学串话效应提高光子探测效率

doi: 10.3788/CO.20150802.0205
基金项目: 国家自然科学基金资助项目(No.11405119);陕西省自然科学基金资助项目(No.2014JQ8364);陕西省教育厅自然科学基金资助项目(No.12JK0975)
详细信息
    通讯作者:

    刘丽娜(1985—),女,黑龙江绥化人,硕士,助理工程师, 2009年于天津师范大学获得学士学位,2012年于北京师范大学获得硕士学位,主要从事弱光探测技术及其应用方面的研究。E-mail:baofeng00004@163.com

  • 中图分类号: TN366

Increasing the photon detection efficiency by the optical crosstalk effect of multi-pixel photon counter

  • 摘要: 通过分析多像素光子计数器(MPPC)的工作原理和其光学串话(OC)效应的特点,提出在使用MPPC输出雪崩信号的幅度或电荷量作为光子计数的参量时,利用MPPC的OC效应能提高MPPC的光子探测效率的观点,并从理论上分析了OC效应对光子探测效率的影响。理论分析结果显示,在这两种光子计数模式下,利用OC效应能明显提高MPPC的光子探测效率。利用本文模型计算得出当MPPC的雪崩单元数M为1 600个,忽略OC效应时的光子探测效率等于30%,光学串话概率等于50%,以及单脉冲入射光子数均值为10时,包含OC效应影响的等效光子探测效率可提高50%,达45%左右。该结果对MPPC在天体物理、粒子物理、荧光光谱探测等弱光探测场合的应用有一定指导意义。

     

  • 图 1  3种模型下光子探测效率随pct变化的函数关系曲线。图为取M=1 600,η=30%,μ=10所得的曲线

    Figure 1.  Dependence of the photon detection efficiency(PDE) on optical crosstalk probability(pct) of three models. Here we choose M=1 600, η=30%, μ=10

    图 2  3种模型下PDE与入射光子数的关系

    Figure 2.  PDE versus incident photon number of three models

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出版历程
  • 收稿日期:  2014-12-12
  • 录用日期:  2015-01-13
  • 刊出日期:  2015-04-25

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