大学物理 ›› 2008, Vol. 27 ›› Issue (5): 4-4.

• 著者文摘 • 上一篇    下一篇

双轴晶体光轴角的计算

胡慧君 王蜀霞 杨云青 牛君杰 耿晓菊 饶早英   

  1. 重庆大学数理学院应用物理系,重庆400044
  • 出版日期:2008-05-25 发布日期:2008-05-20

Calculation of the optic axial angle of the biaxial crystal

  • Online:2008-05-25 Published:2008-05-20

摘要: 通过坐标变换把折射率椭球方程X^2/n1^2+y^2/n2^2+z^2/n3^2=1从主介电坐标系Oxyz转换到另一个新的坐标系Ox′y′z′中,这个新的坐标系Ox′y′z′可以通过将坐标系Oxyz绕原点旋转得到.只要使新的折射率椭球方程与x′y′平面的交线是一个圆,就可以确定z′轴就是晶体的光轴.由此得出了双轴晶体光轴角的计算公式.

关键词: 双轴晶体, 光轴角, 折射率椭球, 坐标变换

Abstract: The optic axial angle of biaxial crystal is calculated by coordinate transforming the index ellipsoid equation X^2/n1^2+y^2/n2^2+z^2/n3^2=1from the principal dielectric coordinate system to another new coordinate system.This new coordinate system Ox′y′z′is gained by rotating the coordinate system Oxyz. It is confirmed that z′axis is optical axis if the intersection of the new index ellipsoid and x′y′ plane is a circularity.

Key words: biaxial crystal, optic axial angle, index ellipsoid, coordinate transformation

中图分类号: 

  • O435.1