Focus Character for Metamaterial Volume with Regular Polygon Structure under Light Irradiation
光波辐射下正多边形异向介质柱聚焦特性分析

Based on FDTD method,a two dimensional model for metamaterial volume with regular triangle,quadrangle and hexagon structure under light irradiation was presented.The focus characters of the model were analyzed and its validity was tested.The simulation results show that when light wave propagates along the angular bisector of corner angle in metamaterial volume,the electromagnetic focus effect will not exist in the metamaterial volume,although the permittivity and permeability of metamaterial are very small.