Optical heterodyne detection in optical cavity ringdown spectroscopy
作者： Brian John Orr , Yabai He
DOI:
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摘要: The present invention relates to optical heterodyne detection cavity ringdown spectroscopy. In one aspect the an system (1) comprising a cell (3) defining resonant cavity, means for directing coherent light selected from group consisting of continuous or quasi-continuous into said (8, 9, 10, 11 and 12), altering so as generate frequency shift in (6, 7), coupling decoupling shifted out (5, 6, optically combining (10, 11, 12) decoupled with another portion not communication (13) intensity combined light. A method is also described well methods apparatus detecting parameter sample.
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