2006•Acta Physica SinicaOpen access
Study on the performance of high precision achromatic retarder
Zhao Pei-Tao, Guohua Li, WU Fu-quan, Peng Han-Dong, Yinchao Zhang, Yuefeng Zhao, Wang Lian, Yuli Liu, (1)曲阜师范大学激光研究所，曲阜 273165; (2)曲阜师范大学激光研究所，曲阜 273165;中国科学院研究生院，北京 100049;中国科学院安徽光学精密机械研究所，国家863计划大气光学重点实验室，合肥 230031; (3)中国科学技术大学化学物理系，合肥 230026; (4)中国科学院安徽光学精密机械研究所，国家863计划大气光学重点实验室，合肥 230031; (5)中国科学院研究生院，北京 100049;中国科学院安徽光学精密机械研究所，国家863计划大气光学重点实验室，合肥 230031
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Abstract
Achromatic retarder is a device to be used in wide spectral range for optical phase retardation. The phase retardation is constant when the wavelength is changed. Modern polarization technology and optical modulation demand high precision for the measurement of achromatic retarder. Based on the principle of polarizing modulation, this paper sets up an experiment system for measuring the phase retardation for high precision achromatic retarder of rhombic shape. The results indicate that the principle of high precision achromatic retarder is correct and the measurement error is less than 1%, it reaches a high precision and satisfies the requirement of application.