Title :
Strategy of Search and Refinement by GA in 2-D Photonic Crystals With Absolute PBG
Author :
Malheiros-Silveira, Gilliard Nardel ; Rodríguez-Esquerre, Vitaly Félix ; Hernández-Figueroa, Hugo E.
Author_Institution :
Dept. of Microwaves & Opt., Univ. of Campinas, São Paulo, Brazil
fDate :
4/1/2011 12:00:00 AM
Abstract :
The finite element method (FEM) and the genetic algorithm (GA) have been used to solve the inverse problem involving absolute photonic band gap (PBG) searching and optimization. Square and triangular lattices composed by Tellurium (anisotropic material) and air have been analyzed. In order to avoid the requirements of high computational efforts and resources needed in these kind of tasks, the PBGs have been computed only at key positions along the first region of Brillouin and we obtained absolute midgap ratio, considering PBGs between the TE 1-2 and TM 3-4 modes, of 18.00% and 23.49% for the square and triangular lattices, respectively.
Keywords :
finite element analysis; genetic algorithms; inverse problems; photonic band gap; photonic crystals; tellurium; 2D photonic crystals; Brillouin effects; Te; absolute PBG; absolute midgap ratio; absolute photonic band gap; anisotropic material; finite element method; genetic algorithm; inverse problem; optimization; search strategy; square lattices; triangular lattices; Biological cells; Finite element methods; Gallium; Lattices; Optimization; Tellurium; Anisotropic optical materials; finite element method; genetic algorithms; photonic band gap; photonic crystals;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2010.2091107
