ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
This paper presents a new optical configuration for measuring the phase retardation ofoptical linear birefringent materials. Phase retardation is measured by a heterodyne light source,which is generated by a Zeeman laser. The measurement system has advantages as a simple opticalsetup, high stability, small size, and portable owing to the configuration and the use of a Zeemanlaser. Using the ratio of amplitudes from two measured heterodyne signals, a simple algorithm canobtain the phase retardation directly. Moreover, we can extend dynamic range of the phaseretardation measurement to be 0 180 successfully. According to the experimental results, theaverage absolute error for the phase retardation of λ / 4 -wave plate sample is determined to be only2.7 %
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.326-328.191.pdf
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