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|Title:||High count rate pseudo-random single photon counting system for time-resolved diffuse optical imaging|
|Keywords:||Diffuse optical imaging|
Pseudo-random bit sequence
Single photon counting
|Source:||Zhang, Q., Chen, N. (2010). High count rate pseudo-random single photon counting system for time-resolved diffuse optical imaging. Progress in Biomedical Optics and Imaging - Proceedings of SPIE 7556 : -. ScholarBank@NUS Repository. https://doi.org/10.1117/12.841924|
|Abstract:||Pseudo-random single photon counting (PRSPC) is a new time-resolved method combining the spread spectrum timeresolved optical measurement method with single photon counting. A continuous wave laser diode is modulated with a pseudo-random bit sequence, while a single photon detector is used to record the pulse sequence in response to the modulated excitation. Periodic cross-correlation is performed to retrieve the impulse response. Compared with conventional time-correlated single photon counting (TCSPC), PRSPC enjoys many advantages such as low cost and high count rate without compromising the sensitivity and time-resolution. In this paper, we report a PRSPC system that can be used for high speed acquisition of the temporal spread function of diffuse photons. It can reach a photon count rate as high as 3Mcps (counts per second). Experimental work has been conducted to demonstrate the system performance. © 2010 Copyright SPIE - The International Society for Optical Engineering.|
|Source Title:||Progress in Biomedical Optics and Imaging - Proceedings of SPIE|
|Appears in Collections:||Staff Publications|
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