Title :
Two-dimensional photonic crystal Fabry-Perot resonators with lossy dielectrics
Author :
Beaky, Matthew M. ; Burk, John B. ; Everitt, Henry O. ; Haider, Mansoor A. ; Venakides, Stephanos
Author_Institution :
Dept. of Phys., Duke Univ., Durham, NC, USA
fDate :
11/1/1999 12:00:00 AM
Abstract :
Square and triangular lattice two-dimensional (2D) photonic crystals (PCs) composed of lossy dielectric rods in air were constructed with a microwave bandgap between 4-8 GHz. Fabry-Perot resonators of varying length were constructed from two of these PCs of adjustable thickness and reflectivity. The quality factor of cavity modes supported in the resonators was found to increase with increasing PC mirror thickness, but only to a point dictated by the lossiness of the dielectric rods. A 2-D periodic Green´s function simulation was found to model the data accurately and quickly using physical parameters obtained in separate measurements. Simple rules are developed for designing optimal resonators in the presence of dielectric loss
Keywords :
Fabry-Perot resonators; Green´s function methods; Q-factor; dielectric losses; dielectric resonators; microwave filters; photonic band gap; 2D periodic Green´s function; 2D photonic crystal Fabry-Perot resonators; 4 to 8 GHz; dielectric loss; dielectric rods; lossy dielectric rods; lossy dielectrics; microwave bandgap; mirror thickness; optimal resonators; physical parameters; quality factor; reflectivity; square lattice; triangular lattice; Dielectric losses; Fabry-Perot; Lattices; Mirrors; Optical losses; Personal communication networks; Photonic band gap; Photonic crystals; Q factor; Reflectivity;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
