Study Of Conical Refraction In Crystal And Its Application

In the early nineteenth century, People paid attention to the phenomenon that the biaxial crystal could produce conical refraction. A bunch of solid quasi-monochromatic beam can be considered as the light source, when the light propagates through the biaxial crystal, the "funnel-shaped" hollow cone light can be generated inside the biaxial crystal or outside. This paper based on this point to study the conical that produced by biaxial crystal.In this paper, the ring size of the conical refraction can change with incident angle from refractive indices ellipsoid of biaxial crystal. Through computer simulation, the characteristics of biaxial crystal which produced conical refraction can be analyzed. When the light propagated through the biaxial crystal, the phenomenon of absorption and dispersion appeared, and it will affect on the transmission quality.According to the absorption and dispersion properties of conical refraction, the spatial coherence decreased when light propagated through the biaxial crystal. The beam propagation direction will change with refractive index, which will cause the change of optical path length. In addition, the experiments and theoretical study can achieve the same results.This paper also discuses the conical refraction which can be applied to optical switching, radar scanner, copier, scanner and other applications.