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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 13 — May. 1, 2004
  • pp: 2777–2785

Measurement of the azimuthal dependence of cross-polarized lidar returns and its relation to optical depth

Nathalie Roy, Gilles Roy, Luc R. Bissonnette, and Jean-Robert Simard  »View Author Affiliations


Applied Optics, Vol. 43, Issue 13, pp. 2777-2785 (2004)
http://dx.doi.org/10.1364/AO.43.002777


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Abstract

We measure with a gated intensified CCD camera the cross-polarized backscattered light from a linearly polarized laser beam penetrating a cloud made of spherical particles. In accordance with previously published results we observe a clear azimuthal pattern in the recorded images. We show that the pattern is symmetrical, that it originates from second-order scattering, and that higher-order scattering causes blurring that increases with optical depth. We also find that the contrast in the symmetrical features can be related to measurement of the optical depth. Moreover, when the blurring contributions are identified and subtracted, the resulting pattern provides a pure second-order scattering measurement that can be used for retrieval of droplet size.

© 2004 Optical Society of America

OCIS Codes
(260.5430) Physical optics : Polarization
(280.3640) Remote sensing and sensors : Lidar
(290.1090) Scattering : Aerosol and cloud effects
(290.1310) Scattering : Atmospheric scattering
(290.4210) Scattering : Multiple scattering

History
Original Manuscript: August 26, 2003
Revised Manuscript: December 3, 2003
Published: May 1, 2004

Citation
Nathalie Roy, Gilles Roy, Luc R. Bissonnette, and Jean-Robert Simard, "Measurement of the azimuthal dependence of cross-polarized lidar returns and its relation to optical depth," Appl. Opt. 43, 2777-2785 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-13-2777

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