左手介质椭圆光波导基模传播特性

在椭圆柱坐标系中，采用分离变量方法，得出了左手介质椭圆光波导本征方程的近似解，通过数值计算，分析了椭圆波导偏心率、左手介质的电容率、磁导率对椭圆光波导基模传播特性的影响，并将左介质光波导与右手介质光波导基模特性进行对比，得出左手介质光波导的基模特性与右手介质光波导基模特性差别不大的结论.

Propagation Characteristics of Fundamental Mode in an Elliptical Optical Waveguide Made from Left Handed Materials

Using the method of separation of variables in the elliptical coordinate system, the approximate eigenequation for an elliptical optical waveguide made from LHM is given. To find the propagation characteristics of fundamental mode in the elliptical optical waveguide, numerical methods are applied. Numerical examples reveal the influences of the permittivity, permeability of LHM and the eccentricity of the elliptical optical waveguide made from LHM on the fundamental mode propagation characteristics. These results show that the propagation characteristic of fundamental modes in the elliptical optical waveguide is influenced weakly by the permittivity and permeability of LHM and influenced strongly by the eccentricity of the elliptical optical waveguide. In addition, fundamental mode propagation characteristics in an elliptical optical waveguide made from LHM are compared with fundamental mode propagation characteristics in an elliptical optical waveguide made from RHM.