MRTD算法的APML实现及其在光波导仿真中的应用  

Implementation and Application of the APML Absorbing Boundary Condition for MRTD Method in Simulation of Planar Waveguide

作　　者：郭毅峰[1] 孔繁敏[1] 李康[1] 刘艳[1] 凌洁[1] 

机构地区：[1]山东大学信息科学与工程学院,山东济南250100

出　　处：《光电子．激光》2004年第2期238-241,共4页Journal of Optoelectronics·Laser

基　　金：山东大学青年基金资助。

摘　　要：实现了基于Daubechies紧支集尺度函数的时域多分辨分析(MRTD)算法的各向异性理想匹配层(APML)吸收边界条件,并将其应用到平面光波导的仿真和分析中。验证结果表明,APML吸收层性能主要由其层数和计算空间步长所决定。与传统的时域有限差分(FDTD)法相比,基于高阶消失矩Daubechies尺度函数的MRTD法可以提高吸收层性能。The anisotropic perfectly matched layer(APML) absorbing boundary condition for the multiresolution time domain(MRTD) method based on Daubechies compactly supported scaling functions was implemented and applied to the simulation of the planner waveguide.The results show that the performance of APML is dependent on the thickness of the APML medium and the size of the computational cell.Compared with conventional FDTD method,the MRTD method based on Daubechies scaling functions with the higher order of vanishing moments could improve the performance of APML.

关 键 词：MRTD APML 时域多分辨分析 各向异性理想匹配层 平面光波导 Daubechies尺度函数 

分 类 号：TN252[电子电信—物理电子学]