Chinese Optics Letters, 2008, 6 (9): 673, Published Online: Sep. 11, 2008
Method for rapid measuring retardation of a quarter-wave plate based on simultaneous phase shifting technique Download: 606次
偏振 1/4波片 快轴方位角 同步移相 120.0120 Instrumentation, measurement, and metrology 260.5430 Polarization 260.1440 Birefringence 050.5080 Phase shift
Abstract
A method for rapid measuring retardation of a quarter-wave plate based on simultaneous phase shifting technique is presented. The simultaneous phase shifting function is realized by an orthogonal grating, a diaphragm, an analyzer array, and a 4-quadrant detector. The intensities of the light beams from the four analyzers with different azimuths are measured simultaneously. The retardation of the quarter-wave plate is obtained through the four light intensity values. In this method, the major axis position of the quarter-wave plate need not be determined in advance. In addition, the measured result is free of the intensity fluctuation of light source. The feasibility of the method is verified by the experiments.
Kun Yang, Aijun Zeng, Xiangzhao Wang, Feng Tang, Hua Wang. Method for rapid measuring retardation of a quarter-wave plate based on simultaneous phase shifting technique[J]. Chinese Optics Letters, 2008, 6(9): 673.