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公开(公告)号:US08330956B1
公开(公告)日:2012-12-11
申请号:US12791156
申请日:2010-06-01
CPC分类号: G01N21/1702
摘要: Various embodiments provide devices and methods of an optical coupled-cavity photo-acoustic spectroscopy (CC-PAS). The exemplary CC-PAS can include three mirrors configured in parallel to couple a Fabry-Perot (FP) cavity with a sample cavity. The sample cavity can be a resonant cavity for containing a sample. The FP cavity can be used as a tunable input coupler for the sample cavity to improve spectroscopic sensitivities when measuring an absorber in the sample.
摘要翻译: 各种实施例提供光耦合腔光声谱(CC-PAS)的装置和方法。 示例性CC-PAS可以包括并联配置的三个反射镜以将法布里 - 珀罗(FP)腔与样品腔耦合。 样品腔可以是用于容纳样品的谐振腔。 FP腔可用作样品腔的可调输入耦合器,以便在测量样品中的吸收剂时提高光谱灵敏度。