Evaluation of a fast single-photon avalanche photodiode for measurement of early transmitted photons through diffusive media.
Evaluation of a fast single-photon avalanche photodiode for measurement of early transmitted photons through diffusive media.
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DOI：
10.1364/ol.38.002098
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发表时间：
2013-06
期刊：
影响因子：
3.6
通讯作者：
Ying Mu;Niksa Valim;M. Niedre
中科院分区：
文献类型：
--
作者：
Ying Mu;Niksa Valim;M. Niedre
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.
