Optimization of Nanostructured Lüneburg Lens Based on the Transformation Optics Method
In this work,we present the design of the nanostructured L(u)neburg lens by using the electromagnetic field simulation and gradient optimization method that based on Transformation Optics(TO)technique.In the proposed method,the nanostructured L(u)neburg lens is simulated with an equivalent model,in which the original dielectric rods with varying size are transformed into uniform and fixed sized rods,with parameterized permittivity and permeability distributions,and then the nanostructured L(u)neburg lens is optimized with the gradient optimization method.By using the TO modeling method,mesh refinement around the smaller rods can be avoided,and repetitions of regenerating the geometry and mesh grids during the optimization iterations can be eliminated,thus the computation efficiency is improved.The proposed design method opens up a new avenue to design and optimize a variety of photonic and optical devices with large number of complex structures.
Yinghui Cao Yongmin Liu Zhenyu Liu
Changchun Institute of Optics,Fine Mechanics and Physics 3888 East Nanhu Road,Changchun,Jilin 130033 Department of Mechanical and Industrial Engineering,Northeastern University 360 Huntington Avenue,Bo Changchun Institute of Optics,Fine Mechanics and Physics 3888 East Nanhu Road,Changchun,Jilin 130033
国际会议
Progress in Electromagnetics Research Symposium 2014(2014年电磁学研究新进展学术研讨会)
广州
英文
2286-2288
2014-08-01（万方平台首次上网日期，不代表论文的发表时间）