Masuda Takahiko, Ang Daniel G, Hutzler Nicholas R, Meisenhelder Cole, Sasao Noboru, Uetake Satoshi, Wu Xing, DeMille David, Gabrielse Gerald, Doyle John M, Yoshimura Koji
Opt Express. 2021 May 24;29(11):16914-16926. doi: 10.1364/OE.424460.
We propose and study a method of optical crosstalk suppression for silicon photomultipliers (SiPMs) using optical filters. We demonstrate that attaching absorptive visible bandpass filters to the SiPM can substantially reduce the optical crosstalk. Measurements suggest that the absorption of near infrared light is important to achieve this suppression. The proposed technique can be easily applied to suppress the optical crosstalk in SiPMs in cases where filtering near infrared light is compatible with the application.
我们提出并研究了一种使用光学滤波器抑制硅光电倍增管（SiPM）光学串扰的方法。我们证明，在SiPM上附着吸收型可见带通滤波器可以大幅降低光学串扰。测量结果表明，吸收近红外光对于实现这种抑制至关重要。在过滤近红外光与应用兼容的情况下，所提出的技术可以轻松应用于抑制SiPM中的光学串扰。
