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

Files
cope_366.pdf (1004.67 KB)
Author(s)
Montarou, Carole C.
Bachim, Brent L.
Dachevski, Alexei I.
Agrawal, Ankur
Advisor(s)
Editor(s)
Associated Organization(s)
Organizational Unit
Series
Collections
Research Publications
Supplementary to:
Permanent Link
http://hdl.handle.net/1853/45417
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.
Sponsor
Date
2006-01
Extent
Resource Type
Text
Resource Subtype
Article
Rights Statement
Rights URI