title: Transmission Raman Measurements Using a Spatial Heterodyne Raman Spectrometer (SHRS).
abstract: A spatial heterodyne Raman spectrometer (SHRS) was used to measure transmission Raman spectra of highly scattering compounds. Transmission Raman spectral intensities of ibuprofen were only 2.4 times lower in intensity than backscatter Raman spectra. The throughput was about eight times higher than an f/1.8 dispersive spectrometer, and the width of the area viewed was found to be seven to nine times higher, using 50.8 mm and 250 mm focal length collection lenses. However, the signal-to-noise (S/N) ratio was two times lower for the SHRS than the f/1.8 dispersive spectrometer, apparently due to high levels of stray light.
authors.affiliation: Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA.
authors.forename: K Alicia
authors.initials: KA
authors.lastname: Strange
authors.affiliation: Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA.
authors.forename: Kelly C
authors.initials: KC
authors.lastname: Paul
authors.affiliation: Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina, USA.
authors.forename: S Michael
authors.initials: SM
authors.lastname: Angel
keywords: FT Raman; SHRS; SHS; TRS; Transmission raman spectroscopy; fourier transform raman; raman spectroscopy; spatial heterodyne raman; spatial heterodyne raman spectrometer