Fluorescence path optical components

In simple fluorimeters where a limited number of analytes are measured a bandpass or cut-olf filter may be used to. select the fluorescence photons. If a 

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In a typical fluorescence spectrometer, the excitation beam illuminating the sample and the optical path employed to detect the emission are orthogonal to each other and define a horizontal plane. By employing linear polarizers before and after the sample, the plane of polarization of the excitation beam can be controlled and the polarization components of the emitted light determined. Specifically, by orientating... 

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