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Local density of states of a finite-sized rectangular-lattice photonic crystal with separable profile of permittivity
, Article Waves in Random and Complex Media ; Volume 20, Issue 3 , 2010 , Pages 419-442 ; 17455030 (ISSN) ; Khorasani, S ; Latifi, H ; Atabaki, A. H ; Sharif University of Technology
2010
Abstract
A different approach in the calculation of two-dimensional local density of states has been presented for a two-dimensional finite rectangular-lattice photonic crystal with a separable profile of permittivity. Approximate staircase structures are already shown to be useful for their ability to reproduce actual properties of practical square lattice photonic crystals. Using the effective resonance approach in a Fabry-Perot resonator and transfer matrix method an analytical expression for calculating a two-dimensional local density of states can be derived for both polarisations in the structure. It is shown that for this geometry one can resolve the modes as a product of two separate...