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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 3 — Jan. 20, 2011
  • pp: 267–270

Analytical model for Rayleigh–Brillouin line shapes in air

B. Witschas  »View Author Affiliations


Applied Optics, Vol. 50, Issue 3, pp. 267-270 (2011)
http://dx.doi.org/10.1364/AO.50.000267


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Abstract

Atmospheric lidar techniques for the measurement of wind, temperature, and optical properties of aerosols as well as nonintrusive measurement techniques for temperature, density, and bulk velocity in gas flows rely on the exact knowledge of the spectral line shape of the scattered laser light on molecules. A mathematically complex, numerical model (Tenti S6 model) is currently the best model for describing these spectra. In this paper an easy processable, alternative analytical model for describing spontaneous Rayleigh–Brillouin spectra in air at atmospheric conditions is introduced. The deviations between the analytical and Tenti S6 models are shown to be smaller than 0.85%.

© 2011 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(280.1310) Remote sensing and sensors : Atmospheric scattering
(280.2490) Remote sensing and sensors : Flow diagnostics
(280.3640) Remote sensing and sensors : Lidar

ToC Category:
Remote Sensing and Sensors

History
Original Manuscript: September 21, 2010
Revised Manuscript: November 12, 2010
Manuscript Accepted: November 26, 2010
Published: January 13, 2011

Citation
B. Witschas, "Analytical model for Rayleigh–Brillouin line shapes in air," Appl. Opt. 50, 267-270 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-3-267

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