Please use this identifier to cite or link to this item: https://doi.org/10.1117/12.841924
Title: High count rate pseudo-random single photon counting system for time-resolved diffuse optical imaging
Authors: Zhang, Q.
Chen, N. 
Keywords: Diffuse optical imaging
Pseudo-random bit sequence
Single photon counting
Time-resolved
Issue Date: 2010
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
URI: http://scholarbank.nus.edu.sg/handle/10635/74869
ISBN: 9780819479525
ISSN: 16057422
DOI: 10.1117/12.841924
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