Method for determining the optical axis and (ne, no) of a birefringent crystal
Applied Optics, Vol. 41, Issue 19, pp. 3936-3940 (2002)
http://dx.doi.org/10.1364/AO.41.003936
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Abstract
There is a phase difference between s and p polarizations when a circularly polarized heterodyne light beam is reflected from a birefringent crystal. It can be measured accurately with a common-path heterodyne interferometric technique. We have derived an equation that describes the relationship between the phase differences and ne, no, and α. Two groups of solutions for (ne, no) can be obtained from this equation by the phase measurements performed at three incident angles under moderate conditions. Each group consists of three pairs of solutions for (ne, no). Finally, by justifying with physical conditions, we obtained the correct solution for (ne, no). Azimuth angle α of the birefringent crystal optical axis can also be determined. And the feasibility of this method is demonstrated.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
(260.1440) Physical optics : Birefringence
Citation
Der-Chin Su and Cheng-Chih Hsu, "Method for determining the optical axis and (ne, no) of a birefringent crystal," Appl. Opt. 41, 3936-3940 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-19-3936
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