椭圆偏振光参量的测定

Measuring the parameters of the elliptical polarization light

描述光波偏振态有多种方法,使用斯托克斯参量来表示单色波偏振态是其常用的一种。实验是在主轴坐标系中进行的,在直角坐标系和主轴坐标系中斯托克斯参量的表示是不相同的,可用一定的关系进行转换。通过实验测量斯托克斯参量,求出椭圆偏振光参量。实验结果与理论计算值相符合。

There are many ways to describe the polarization of monochromative wave, among them the Stokes parameter is important. The experiment is carried out in the mainshaft coordinate system. The Stokes parameters are different in the rectangular coordinate system from that in the mainshaft system. It can be transformed in some way. The Stokes parameters are measured. Then the parameters of the elliptical polarization light can be calculated out with it. The rusult is in accordance with the theoratical calculations.