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Picosecond phase fluorometry by mode-locked cw lasers

Authors
Journal
Optics Communications
0030-4018
Publisher
Elsevier
Publication Date
Volume
42
Issue
6
Identifiers
DOI: 10.1016/0030-4018(82)90279-6

Abstract

Abstract A new picosecond to nanosecond phase fluorometer is reported for measurements of fluorescence lifetime τ f and rotational diffusion time constants τ rot which uses a mode-locked cw laser as excitation source. Fourier component signals greater than the signal in a 100% sine-modulated phase fluorometer with the same average excitation power, a frequency range 125 MHz to 1000 MHz and a time resolution ⩾ 3 ps for τ rot have been achieved.

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