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Comparison of different phase conjugate and backscattering arrangements in non‐linear Raman spectroscopy
Author(s) -
Pfeiffer M.,
Lau A.,
Werncke W.
Publication year - 1990
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.1250211212
Subject(s) - raman spectroscopy , raman scattering , homogeneity (statistics) , optics , coherent anti stokes raman spectroscopy , phase (matter) , spectroscopy , reflection (computer programming) , materials science , spectral line , physics , analytical chemistry (journal) , chemistry , computer science , chromatography , astronomy , quantum mechanics , machine learning , programming language
A theoretical and experimental comparison of coherent anti‐Stokes Raman scattering (CARS) and Raman‐induced phase conjugation (RIPC) techniques has been carried out. In most cases the RIPC techniques are much more sensitive than CARS to deviations from the phase‐matching conditions, from which it follows that for RIPC much higher accuracy of the alignment and optical homogeneity are necessary. In practice, only one RIPC variant with nearly copropagating pump waves and contrapropagating Stokes waves is applicable to obtain complete spectra. A CARS reflection technique is discussed for the investigation of highly absorbing samples.