The simple method research for measuring the phase retardation of wave-plates
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School of Electronic Engineering and Photoelectric Technology, Nanjing University of Science & Technology, Nanjing 210094, China
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Received Date:
2003-12-08
Accepted Date:
2004-06-23
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Abstract
The measurement model of wave-plate's phase retardation based on the theory of compensate was introduced with the help of common Jones formula of wave-plate,a novel method was proposed to measu re the phase retardation for many kinds of wave-plates whose axes were unknown. The stepping motor was used to drive the wave-plate and a grating encoder was used to measure rotating angle of the analyzer.A light intensity meter was used to gather the energy of laser.While the measured wave-plate was rotated around,the phase retardation was obtained from the maximum and minimum value.This method is rapid and convenient.
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Proportional views
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