The Reflection And Transmissivity Of Extraordinary Beam At Crystal Surfaces

With the development of science and technology, all kinds of optical devices made bycrystal get more attention by the people, many new technologies have been applied to theoptical field, especially in the field of photoelectric technology and communication. Thereforepeople pay more and more attention on researching of properties that light propagation in thecrystal, and Fresnel reflected of light-wave in crystal interface is one of the main factorscausing the optical device insertion loss.In this paper, by using the refractive plane and the boundary conditions of electromagneticfields, through geometry analysis method, investigated the refraction and reflection situationof two different uniaxial crystal surface which occurred extraordinary polarized light andpolarized light. The main achievements are as follows:Study on the situation that optical axis of the crystal is arbitrary, extraordinary polarizedlight and ordinary polarized light from one crystal incident to another, surface reflection andrefraction phenomenon between two crystal. According to the refractive plane confirm thewave vector and light direction of propagation by using the uniaxial crystal geometricdrawing method, analysis of the double reflection on the crystal surface and birefringence,identified the position of reflecting wave, reflect light, refraction wave and refraction of light.At the same time, according to the double reflection effect of electromagnetic fieldboundary conditions and crystal, based on the Fresnel reflected, concluded is the reflectionand transmission coefficients, and the analytic expressions of reflectivity and transmissivity indifferent uniaxial crystal surface.