Lock J A
Appl Opt. 1996 Jan 20;35(3):500-14. doi: 10.1364/AO.35.000500.
Diffraction and reflection of an arbitrarily polarized plane wave by an arbitrarily oriented spheroid in the short-wavelength limit are considered in the context of ray theory. A closed-form solution for both diffraction and reflection is obtained, and the polarization character of the diffracted plus reflected electric field is obtained. It is found that the magnitude of the reflected electric field is multivalued for forward scattering. This is interpreted in terms of the variation of the spheroid's Gaussian curvature at the points where grazing ray incidence occurs.
在射线理论的背景下，考虑了短波长极限下任意取向的椭球体对任意极化平面波的衍射和反射。得到了衍射和反射的封闭形式解，并获得了衍射加反射电场的极化特性。发现对于前向散射，反射电场的大小是多值的。这是根据掠射光线入射点处椭球体高斯曲率的变化来解释的。
