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Proceedings Paper

Nonresonant background suppression in coherent anti-Stokes Raman scattering spectra of dissolved molecules
Author(s): Gerald W. Lucassen; T. A. H. M. Scholten; Wim de Boey; Frits F. M. de Mul; Jan Greve
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Paper Abstract

The Phase Mismatching CARS technique uses the nonresonant signal of the glass cuvette walls to coherently compensate the nonresonant signal of the sample yielding a method of measuring background free CARS spectra. The technique is especially suitable under (pre) resonant nditions where many molecular Raman vibrationsNend to have depolarization ratios p close to the nonresonant depolarization ratio p In comparison with the Polarization Sensitive CARS technique the Phase Mismatching technique has a higher net suppression ratio because of the lower loss of vibration resonant signal. The combination of the Phase mismatching and Polazation Sensitive CARS technique yields the possibility of direct measurements of XIjkl components and resolving overlapping bands with different depolarization ratios without an interfering nonresonant background. 1.

Paper Details

Date Published: 1 May 1991
PDF: 10 pages
Proc. SPIE 1403, Laser Applications in Life Sciences, (1 May 1991); doi: 10.1117/12.57302
Show Author Affiliations
Gerald W. Lucassen, Univ. of Twente (Netherlands)
T. A. H. M. Scholten, Univ. of Twente (Netherlands)
Wim de Boey, Univ. of Twente (Netherlands)
Frits F. M. de Mul, Univ. of Twente (Netherlands)
Jan Greve, Univ. of Twente (Netherlands)

Published in SPIE Proceedings Vol. 1403:
Laser Applications in Life Sciences
Sergei A. Akhmanov; Marina Yu. Poroshina, Editor(s)

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