
Proceedings Paper
Removal of nonresonant background in MCARS spectra using Fourier filteringFormat | Member Price | Non-Member Price |
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Paper Abstract
Multiplex coherent anti-Stokes Raman spectroscopy (MCARS) has been used to create a complete Raman spectrum
of a material of interest in milliseconds. However, these MCARS spectra often embedded in a nonresonant
background that reduces the ability to use those spectra to positively identify the material of interest. There are a
number of techniques that are used experimentally to reduce the nonresonant background when taking the MCARS
spectrum. However, there are situations where these experimental nonresonant background reduction techniques
may result in a loss of the desired MCARS signal. In an effort to maintain the signal strength of the MCARS
spectrum, analytical methods of background removal are employed. There are a number of analytical techniques for
nonresonant background removal from MCARS signals. However, many of them either make blanket assumptions
about the nonresonant background that sacrifice accuracy of the technique or require knowledge of the material of
interest before removing the nonresonant background. We will be reporting on an analytical method to remove the
nonresonant background that utilizes a combination of the maximum entropy method to reproduce the spectrum as
well as complex spectral filtering to remove the nonresonant background and accurately determine the CARS
spectrum interest without prior knowledge of the material of interest.
Paper Details
Date Published: 2 June 2015
PDF: 9 pages
Proc. SPIE 9455, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI, 94550H (2 June 2015); doi: 10.1117/12.2181043
Published in SPIE Proceedings Vol. 9455:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI
Augustus Way Fountain III, Editor(s)
PDF: 9 pages
Proc. SPIE 9455, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI, 94550H (2 June 2015); doi: 10.1117/12.2181043
Show Author Affiliations
Stephen D. Roberson, U.S. Army Research Lab. (United States)
Paul M. Pellegrino, U.S. Army Research Lab. (United States)
Published in SPIE Proceedings Vol. 9455:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI
Augustus Way Fountain III, Editor(s)
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