Measurement of wide-band phase retardation variation of wave-plates by means of continuous polarization interference method
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Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Institute of Laser Research, Qufu Normal University, Qufu 273165, China;
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2.
College of Physics Science and Technology, China University of Petroleum(East China), Qingdao 266555, China
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Corresponding author:
SONG Lian-ke, lksong@mail.qfnu.edu.cn
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Received Date:
2011-07-26
Accepted Date:
2011-08-26
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Abstract
In order to measure the wide-band phase retardation variation of quartz wave-plates,a new method was proposed based on the principle of continuous polarization interference,and the data processing method for the corresponding retardation variation of each wavelength was given.In the method,relative measurement was carried out with the Shimadzu UV-3101PC spectrophotometer to increase the stable reliability of the data collection,and the continuous polarization interference spectrum of the quartz wave-plate in known thickness at 300nm～800nm wave band was obtained.Then theoretical analysis and experimental verification were carried out.The results show that the experimental curve and theoretical curve fit well,and the measurement of the average error is less than 2°.It has important practical significance for study on the retardation dispersion properties of the wave-plates and the guidance of the technical process.
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