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|Title:||Pseudo-random single photon counting: A highspeed implementation|
|Source:||Zhang, Q., Chen, L., Chen, N. (2010-08-02). Pseudo-random single photon counting: A highspeed implementation. Biomedical Optics Express 1 (1) : 41-46. ScholarBank@NUS Repository. https://doi.org/10.1364/BOE.1.000041|
|Abstract:||Pseudo-random single photon counting (PRSPC) is a new timeresolved optical measurement method which combines the spread spectrum time-resolved method with single photon counting. A pseudo-random bit sequence is used to modulate a continuous wave laser diode, while single photon counting is used to build up the optical signal in response to the modulated excitation. Periodic cross-correlation is performed to obtain the temporal profile of the subject of interest. 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 point spread function of diffuse photons. It can reach a photon count rate as high as 3 Mcps (counts per second). Phantom experiments have been conducted to demonstrate the system performance. © 2010 Optical Society of America.|
|Source Title:||Biomedical Optics Express|
|Appears in Collections:||Staff Publications|
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