Evaluation of a fast single-photon avalanche photodiode for measurement of early transmitted photons through diffusive media

被引：7

作者：

Mu, Ying ^{[1
]}

Valim, Niksa ^{[1
]}

Niedre, Mark ^{[1
]}

机构：

[1] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA

来源：

OPTICS LETTERS | 2013年 / 38卷 / 12期

基金：

美国国家卫生研究院;

关键词：

FLUORESCENCE TOMOGRAPHY; OPTICAL TOMOGRAPHY; TIME;

D O I：

10.1364/OL.38.002098

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We tested the performance of a fast single-photon avalanche photodiode (SPAD) in measurement of early transmitted photons through diffusive media. In combination with a femtosecond titanium: sapphire laser, the overall instrument temporal response time was 59 ps. Using two experimental models, we showed that the SPAD allowed measurement of photon-density sensitivity functions that were approximately 65% narrower than the ungated continuous wave case at very early times. This exceeds the performance that we have previously achieved with photomultiplier-tube-based systems and approaches the theoretical maximum predicted by time-resolved Monte Carlo simulations. (c) 2013 Optical Society of America

引用

页码：2098 / 2100

页数：3

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