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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 6, Iss. 8 — Aug. 26, 2011

Instrumentation to measure the backscattering coefficient b b for arbitrary phase functions

David Haubrich, Joe Musser, and Edward S. Fry  »View Author Affiliations


Applied Optics, Vol. 50, Issue 21, pp. 4134-4147 (2011)
http://dx.doi.org/10.1364/AO.50.004134


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Abstract

A single detector instrument concept that collects scattered light over the full range of backscattering angles is described. Its light collection aperture is designed so as to introduce a sin θ factor into the collection probability. Hence, the instrument is exactly a b b meter; it directly measures b b , not a proxy for it. For an infinitesimal aperture to the detector, the instrument would give b b exactly; for a finite aperture (e.g., 1.26 cm 2 ), it would typically give b b to an accuracy of a few tenths of 1 % . The instrumentation itself is as simple as that of the well-known fixed-angle meters—it projects a beam of light into the medium and collects backscattered light with a single detector; the differences are the position of the detector and the shape/orientation of the entrance aperture to the detector.

© 2011 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(290.1350) Scattering : Backscattering
(010.4458) Atmospheric and oceanic optics : Oceanic scattering
(010.1350) Atmospheric and oceanic optics : Backscattering

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: April 29, 2011
Manuscript Accepted: May 18, 2011
Published: July 19, 2011

Virtual Issues
Vol. 6, Iss. 8 Virtual Journal for Biomedical Optics
August 5, 2011 Spotlight on Optics

Citation
David Haubrich, Joe Musser, and Edward S. Fry, "Instrumentation to measure the backscattering coefficient bb for arbitrary phase functions," Appl. Opt. 50, 4134-4147 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-50-21-4134


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