Abstract

The use of shifted-spectra, first-derivative spectroscopy (or edge detection), and fast Fourier transform filtering techniques for fluorescence rejection in Raman spectra is demonstrated. These techniques take advantage of the fact that Raman signals are very narrow in comparison to fluorescence bands in order to discriminate between the two. None of these techniques require modification of existing instrumentation. Fast Fourier transform filtering and deconvolution techniques also provide a means of improving spectral resolution and the signal-to-noise ratio.

Multi-excitation Raman spectroscopy technique for fluorescence rejection

Scott T. McCain, Rebecca M. Willett, and David J. Brady
Opt. Express 16(15) 10975-10991 (2008)

An Interferometric Rejection Filter for Raman Spectroscopy

W. Proffitt, L. M. Fraas, P. Cervenka, and S. P. S. Porto
Appl. Opt. 10(3) 531-534 (1971)

Rayleigh rejection filters for 193-nm ArF laser Raman spectroscopy

Robert L. McKenzie
Opt. Lett. 18(12) 995-997 (1993)

Optimal algorithm for fluorescence suppression of modulated Raman spectroscopy

Michael Mazilu, Anna Chiara De Luca, Andrew Riches, C. Simon Herrington, and Kishan Dholakia
Opt. Express 18(11) 11382-11395 (2010)

Reduction of Fluorescence Background in Raman Spectra by the Pulsed Raman Technique*

Perry Pappas Yaney
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