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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 18 — Jun. 20, 1999
  • pp: 3937–3944

Backscattering target detection in a turbid medium by polarization discrimination

Gareth D. Lewis, David L. Jordan, and P. John Roberts  »View Author Affiliations


Applied Optics, Vol. 38, Issue 18, pp. 3937-3944 (1999)
http://dx.doi.org/10.1364/AO.38.003937


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Abstract

We describe a method for increasing target contrast within a turbid medium by means of the polarization state of the scattered light. The backscattered Mueller matrices for various concentrations of 0.1-µm spherical scatterers were measured with and without a painted metal target. Simple discrimination based on detecting cross-polarized intensities is shown to be more effective than the use of total intensity information. As a result, the choice of polarization state is dictated primarily by the requirement to maximize depolarization at the target. This in general means that circularly polarized light is the optimum choice.

© 1999 Optical Society of America

OCIS Codes
(260.5430) Physical optics : Polarization
(290.5850) Scattering : Scattering, particles
(290.7050) Scattering : Turbid media

History
Original Manuscript: March 19, 1999
Revised Manuscript: March 19, 1999
Published: June 20, 1999

Citation
Gareth D. Lewis, David L. Jordan, and P. John Roberts, "Backscattering target detection in a turbid medium by polarization discrimination," Appl. Opt. 38, 3937-3944 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-18-3937


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