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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 28 — Oct. 1, 1998
  • pp: 6648–6653

Measuring optical power transmission near the critical angle for sensing beam deflection

Joel Villatoro and Augusto García-Valenzuela  »View Author Affiliations


Applied Optics, Vol. 37, Issue 28, pp. 6648-6653 (1998)
http://dx.doi.org/10.1364/AO.37.006648


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Abstract

We investigate an internal-transmission method for measuring microdeflections of an optical beam as a potential tool for the development of new compact and stable optical sensors. We calculate the detection limits of the internal-transmission method when an ideal coherent optical source and an ideal quasi-monochromatic thermallike source are used. The proposed method is compared with an internal-reflection method previously studied. It is found theoretically and verified experimentally that the transmission method may have better resolution than the reflection method. We also compare the calculated sensitivity as a function of the angle of incidence with experimental results for both methods.

© 1998 Optical Society of America

OCIS Codes
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(130.6010) Integrated optics : Sensors
(230.0040) Optical devices : Detectors
(230.5480) Optical devices : Prisms
(260.6970) Physical optics : Total internal reflection

History
Original Manuscript: March 2, 1998
Revised Manuscript: May 1, 1998
Published: October 1, 1998

Citation
Joel Villatoro and Augusto García-Valenzuela, "Measuring optical power transmission near the critical angle for sensing beam deflection," Appl. Opt. 37, 6648-6653 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-28-6648


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