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

Bood, Joakim LU ; Bengtsson, Per Erik LU orcid and Aldén, Marcus LU (1998) In Applied Optics 37(36). p.8392-8396
Abstract

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... (More)

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.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
in
Applied Optics
volume
37
issue
36
pages
5 pages
publisher
Optical Society of America
external identifiers
  • scopus:0032553821
ISSN
1559-128X
language
English
LU publication?
yes
id
4aace247-71e9-4e04-8ce3-6c75a5376b36
date added to LUP
2016-06-29 16:58:34
date last changed
2022-03-16 06:55:14
@article{4aace247-71e9-4e04-8ce3-6c75a5376b36,
  abstract     = {{<p>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.</p>}},
  author       = {{Bood, Joakim and Bengtsson, Per Erik and Aldén, Marcus}},
  issn         = {{1559-128X}},
  language     = {{eng}},
  number       = {{36}},
  pages        = {{8392--8396}},
  publisher    = {{Optical Society of America}},
  series       = {{Applied Optics}},
  title        = {{Stray light rejection in rotational coherent anti-Stokes Raman spectroscopy by use of a sodium-seeded flame}},
  volume       = {{37}},
  year         = {{1998}},
}