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Optical Engineering

Design of an optical probe based on angle scanning reflectometry near the critical angle
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Paper Abstract

Techniques based on angle scanning reflectometry near the critical angle can provide high-resolution optical measurements and testing of transparent, absorbing, and turbid liquid samples. Until recently, such techniques were practical for laboratory instruments only. In this work we propose and analyze the design of a relatively simple, compact, and robust optical probe based on angle scanning reflectometry near the critical angle. The optical probe can be used as a high-resolution refractometer, permitting the measurement of the real and imaginary parts of the refractive index, or as an optical sensor to monitor physical and chemical processes in real time within complex liquids. The design offers easy handling, portability, and an adequate balance between size and stability. We study the optical characteristics of the instrument and present the results of an experimental prototype of the device.

Paper Details

Date Published: 1 March 2003
PDF: 9 pages
Opt. Eng. 42(3) doi: 10.1117/1.1542593
Published in: Optical Engineering Volume 42, Issue 3
Show Author Affiliations
Mary Carmen Pena-Gomar, Univ. Autónoma de San Luis Potosí (Mexico)
Augusto García-Valenzuela, Univ. Nacional Autonoma de Mexico (Mexico)
Martha Rosete-Aguilar, Univ. Nacional Autonoma de Mexico (Mexico)


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