波片相位延迟测量的简捷方法研究

详细信息

The simple method research for measuring the phase retardation of wave-plates

School of Electronic Engineering and Photoelectric Technology, Nanjing University of Science & Technology, Nanjing 210094, China

摘要: 通过引入波片通用琼斯矩阵公式,推导出基于补偿法原理的波片相位延迟测量分析模型,提出一种新的波片相位测量方法,测量时无需知道波片的光轴方位,可以测量多种波片。测量装置采用了步进电机带动被测波片转动,使用光栅编码器测量检偏器的预置角度,运用光功率计实现光强的采集。测量周期短,是一种迅速方便快捷的方法。
- 波片 /
- 相位延迟 /
- 光轴 /
- 光栅编码器
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.
- wave-plate phase /
- retardation /
- optical axis /
- grating encoder

[1]	郁道银,谈恒英.工程光学 [M].北京:机械工业出版社,1998.322～370.
[2]	SHYU L,CHEN C,SU D.Method for measuring the retardation of a wave-plate [J].Appl Opt,1993,32(22):4228～4230.
[3]	OAKBERG T C.Measurement of wave-plate retardation using a photoelastic modulator [J].Proc SPIE,1997,3121:19～22.
[4]	SANKARASUBRAMANIAN K,VENKATAKRISHNAN P.A CCD-based polarization interferometric technique for testing wave-plates [J].Opt Laser Technol,1998,30:15～21.
[5]	ZHANG Y,ZHANG Sh L.Method for the measurement of retardation of wave plates based on laser frequency-splitting technology [J].Opt Engng,2001,40(6):1071～1075.
[6]	戴高良,殷存永.高复现性波片测量方法和实验 [J].计量学报,1998,19(2):136～141.
[7]	徐文东,李锡善.波片相位延迟量精密测量新方法 [J].光学学报,1994,14(10):1096～1101.
[8]	薛庆文,李国华.半阴法测量λ/4波片的相位延迟 [J].光电子·激光,1998,9(2):150～151.
[9]	新谷隆一.偏振光 [M].上海:原子能出版社,1994.10～60.