Title :
Photonic Bandgap Inspection in 2-D Sublattices
Author :
Malheiros-Silveira, Gilliard N. ; Rodriguez-Esquerre, Vitaly F. ; Hernandez-Figueroa, Hugo E.
Author_Institution :
Department of Microwave and Optics, School of Electrical and Computer Engineering, University of Campinas, 13083-970 Campinas, Brazil
Abstract :
Large photonic bandgaps (PBGs) have been obtained by sweeping linearly the parameters of complex sublattices inside the unitary cells of square- and triangular-lattice photonic crystals. An efficient frequency-domain finite-element method with periodical boundary conditions has been used for theoretical analyses. PBGs in silicon/air photonic crystals for both polarization modes have been considered for up to 21 eigenmodes and both low- and high-order PBGs have been obtained by this relatively simple systematic process.
Keywords :
Finite element methods; Histograms; Lattices; Photonic band gap; Scattering; Silicon; Finite-element method (FEM); optical devices; photonic bandgap (PBG); photonic crystals (PCs); sublattices;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2202213
