Using quantum entangled photons to measure the absolute photon detection efficiency of a multi-pixel SiPM array

Using quantum entangled photons to measure the absolute photon detection efficiency of a multi-pixel SiPM array
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使用量子纠缠光子测量多像素 SiPM 阵列的绝对光子检测效率

DOI:
10.1016/j.nima.2019.05.008
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发表时间:
2020
期刊:
Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
通讯作者:
Williams J
Williams J
中科院分区:
--
文献类型:
--
作者:
Williams J

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一个可见泵浦光子的自发参数下转换(SPDC)是使用非线性晶体如硼酸钡产生两个能量较低的量子纠缠光子(qep),通常在近红外(NIR)中。由于检测到一个QEP预示着其纠缠的孪生体的存在,QEP以前被用来测量被测探测器的绝对光子探测效率(PDE), η (λ),通过使用额外的触发探测器测量时间同步事件,允许评估η D U T (λ),而无需求助于校准的参考探测器。本文概述了QEP绝对PDE测量技术,并提出了该技术的扩展,以测量多像素阵列上像素的η (λ),其中每个像素提供单独的信号输出。通过将多像素数组中的所有像素处理为不可区分的,蒙特卡罗模拟表明,测量的对称性允许η (λ)为每个像素确定。本文概述了采用64像素SiPM阵列与64通道波形数字化模块相结合的实验测量方法。
Spontaneous parametric down-conversion (SPDC) of a visible pump photon is the generation of two less energetic, quantum entangled photons (QEPs), often in the near infrared (NIR), using a non-linear crystal eg beta barium borate. Since the detection of one QEP predicates the existence of its entangled twin, QEPs have previously been used to measure the absolute photon detection efficiency (PDE), η (λ), of a detector under test by measuring time-coincident events with an additional trigger detector, allowing evaluation of η D U T (λ) without recourse to a calibrated reference detector. In this paper, the QEP absolute PDE measurement technique is outlined, and an extension of this technique is proposed to measure η (λ) for pixels on a multi-pixel array where each pixel provides an individual signal output. By treating all pixels in a multi-pixel array as indistinguishable, Monte Carlo simulations show that the symmetry of the measurement allows η (λ) to be determined for each pixel. A route towards experimental measurements using this technique with a 64-pixel SiPM array combined with a 64-channel waveform digitiser module is outlined.
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