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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 19 — Jul. 1, 2001
  • pp: 3190–3195

Optical detection of small changes in refractive indices in water by single-beam scattering

Sammie Giles, Jr., Grigory Adamovsky, and Nasser Rashidnia  »View Author Affiliations


Applied Optics, Vol. 40, Issue 19, pp. 3190-3195 (2001)
http://dx.doi.org/10.1364/AO.40.003190


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Abstract

We studied forward-scattered laser light that is produced when the light strikes an abrupt interface (air bubble in water) and when it passes unimpeded through diffused water layers caused by temperature gradients. Measured intensities of the scattered light indicated patterns that are due to both geometrical and physical optics. Distribution of intensities within the scattered beam changed with the average vertical temperature gradient. Shifts in locations of intensities indicated small changes in the index of refraction in the diffused scattering case.

© 2001 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.4530) Instrumentation, measurement, and metrology : Optical constants
(120.5820) Instrumentation, measurement, and metrology : Scattering measurements
(160.4760) Materials : Optical properties
(290.5850) Scattering : Scattering, particles

History
Original Manuscript: August 18, 2000
Revised Manuscript: March 12, 2001
Published: July 1, 2001

Citation
Sammie Giles, Grigory Adamovsky, and Nasser Rashidnia, "Optical detection of small changes in refractive indices in water by single-beam scattering," Appl. Opt. 40, 3190-3195 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-19-3190

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