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Two-photon excitation and time-resolved fluorescence: 1. The proper response function for analysing single-photon counting experiments

机译:双光子激发和时间分辨荧光:1.用于分析单光子计数实验的适当响应函数

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摘要

An accurate instrumental response function is needed to deconvolute fluorescence data obtained by time-correlated single-photon counting (TCSPC) upon multi-photon excitation. Hitherto the response function was obtained by measuring Rayleigh scattering (RS) from colloidal solutions, as is also used in one-photon excited fluorescence. We show that hyper Rayleigh scattering (HRS) provides a better choice for deconvolution of fluorescence decays, as obtained by TCSPC and two-photon excitation (TPE). The one- and two-photon response functions were monitored as RS and HRS from colloidal gold particles at 800 and 400 nm, respectively. (C) 2002 Published by Elsevier Science B.V. [References: 23]
机译:需要精确的仪器响应函数来对通过多光子激发时与时间相关的单光子计数(TCSPC)获得的荧光数据进行去卷积。迄今为止,响应函数是通过测量胶体溶液的瑞利散射(RS)获得的,这也用于单光子激发荧光中。我们表明,超瑞利散射(HRS)为荧光衰减的解卷积提供了更好的选择,如通过TCSPC和双光子激发(TPE)获得的。分别从800和400 nm的胶体金颗粒以RS和HRS监测一光子和两光子响应函数。 (C)2002由Elsevier Science B.V.出版[参考文献:23]

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