摘要
本文就光入射到双轴晶体的情况给出有关求折射光方向的一般方法。按云母的相应数据画出三视图,使晶体转动时折射光的轨迹明显可见。当入射面和晶面是晶体的主介电轴平面和光为正入射时,给出折射光线方向的公式。它们提供了测量晶片光学常数的一种方法。此外,还讨论了对应于一入射线的两折射光E矢量之间的夹角。
In the article, a general method finding the direction of refractive rays is given in the case of light incident on a biaxial crystal. The corresponding data of mica are plotted in three-view diagrams, which make the trace of the refractive rays clear as the crystal rotates. When incident plane and crystal plane are the planes of principal dielectric axis of crystal and ray is perpendicular incidence, the formulas for direction of refractive rays are obtained. They provide a method to determine the optical constants of crystal plane. In addition, the angle between E-field of two refractive rays corresponding to a ray of incidence is also discussed.
