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Optics Letters

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  • Vol. 29, Iss. 20 — Oct. 15, 2004
  • pp: 2381–2383

Application of an optical pulse stretcher to coherent anti-Stokes Raman spectroscopy

Frank Beyrau, Markus Christian Weikl, Thomas Seeger, and Alfred Leipertz  »View Author Affiliations


Optics Letters, Vol. 29, Issue 20, pp. 2381-2383 (2004)
http://dx.doi.org/10.1364/OL.29.002381


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Abstract

An external optical cavity pulse stretcher for nanosecond-long laser pulses has been applied to coherent anti-Stokes Raman spectroscopy (CARS). An increased signal-to-noise ratio was achieved for both vibrational and pure rotational CARS, while the power density of the laser beams remained constant. Moreover, it was demonstrated that the use of the pulse stretcher also leads to improved precision of the determined temperatures and concentrations as a result of repeated excitation of the dye laser.

© 2004 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.6780) Instrumentation, measurement, and metrology : Temperature
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

Citation
Frank Beyrau, Markus Christian Weikl, Thomas Seeger, and Alfred Leipertz, "Application of an optical pulse stretcher to coherent anti-Stokes Raman spectroscopy," Opt. Lett. 29, 2381-2383 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-20-2381


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References

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