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Stray light rejection in rotational coherent anti-Stokes Raman spectroscopy by use of a sodium-seeded flame

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Author

Summary, in English

A common experimental problem with rotational coherent anti-Stokes Raman spectroscopy (CARS) is undesired spectral interference that is due to stray light from the primary laser beams. Also, for the most developed approach, dual-broadband rotational CARS, practical measurements often suffer from stray light interference from the narrow-band laser, inasmuch as the CARS signal is produced inherently in the spectral vicinity of the narrow-band laser beam. An optical filter does not provide a sufficiently sharp transmission profile, thus leading to signal loss and spectral distortion of the rotational CARS signal. An atomic filter consisting of a sodium-seeded flame is presented here as a solution to the problem, and its usefulness was demonstrated in dual-broadband rotational CARS experiments.

Department/s

Publishing year

1998

Language

English

Pages

8392-8396

Publication/Series

Applied Optics

Volume

37

Issue

36

Document type

Journal article

Publisher

Optical Society of America

Status

Published

ISBN/ISSN/Other

  • ISSN: 1559-128X