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Experimental verification of backscattering CARS spectroscopy on opaque media
Author(s) -
Weippert A.,
Funk J.M.,
Materny A.,
Kiefer W.
Publication year - 1993
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250241012
Subject(s) - opacity , raman spectroscopy , optics , reflection (computer programming) , spectral line , signal (programming language) , spectroscopy , angle of incidence (optics) , materials science , crystal (programming language) , chemistry , analytical chemistry (journal) , physics , quantum mechanics , astronomy , computer science , programming language , chromatography
Abstract The applicability of a recently suggested coherent anti‐Stokes Raman spectroscopic (CARS) reflection technique to investigations of strongly absorbing materials was tested. Teh underlying principle is that the CARS signal generated in the surface layers of the sample is detected as a beam which is backscattered from the surface of an opaque medium rather than in transmission. A special experimental arrangement was used which allowed CARS spectra to be obtained with reasonable signal strenth. As an example, experimental results for a TS6 (hexa‐2,4‐diynylene di‐ p ‐toluenesulphonate)polydiacetylene single crystal are presented. Spectra obtained at different angles of incidence are discussed.