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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 45, Iss. 2 — Jan. 10, 2006
  • pp: 271–280

Two-wave-plate compensator method for full-field retardation measurements

Carole C. Montarou, Thomas K. Gaylord, Brent L. Bachim, Alexei I. Dachevski, and Abhiruchi Agarwal  »View Author Affiliations


Applied Optics, Vol. 45, Issue 2, pp. 271-280 (2006)
http://dx.doi.org/10.1364/AO.45.000271


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Abstract

The two-wave-plate compensator (TWC) method is expanded for full-field retardation measurements by use of a polarization microscope. The sample image is projected onto a CCD camera connected to a computer, allowing the retardation to be measured at all pixels. The retardation accuracy of this implementation of the TWC is evaluated to be 0.06 nm . The method is applied to polarization-maintaining fibers and long-period fiber gratings. The measured retardation is in good agreement with the crossed-polarizer images of the fibers. The method achieves a spatial resolution of 0.45 µm and a retardation resolution of 0.07 nm . The full-field TWC method can thus be a useful tool for characterizing and monitoring the fabrication of optical devices.

© 2006 Optical Society of America

OCIS Codes
(110.0180) Imaging systems : Microscopy
(120.4640) Instrumentation, measurement, and metrology : Optical instruments
(260.1440) Physical optics : Birefringence

ToC Category:
Instrumentation, Measurement, and Metrology

Citation
Carole C. Montarou, Thomas K. Gaylord, Brent L. Bachim, Alexei I. Dachevski, and Abhiruchi Agarwal, "Two-wave-plate compensator method for full-field retardation measurements," Appl. Opt. 45, 271-280 (2006)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-45-2-271

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