Article | January 9, 2015

Optical Filters For Raman Analysis: Finding The Needle In The Haystack

By Iridian Spectral Technologies

Fundamental to most Raman microscopy applications is the desire to access as much of the Raman fingerprint of the molecule of interest as possible, requiring filters that provide “more signal with less background.” In order to optimize the capture of this very-low wave number Raman signal, a premium is put on edge pass filters with extreme steepness, very precise edge wavelength control, and deep blocking of the excitation laser. This article provides an in-depth discussion of optical filters for Raman analysis, addressing filters for both bench-top and portable Raman applications.

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Iridian Spectral Technologies