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Simulations of Realizable Photonic Bandgap Structures with High Refractive Contrast

Published online by Cambridge University Press:  21 March 2011

Bonnie Gersten  and
Jennifer Synowczynski
Bonnie Gersten
Affiliation:
Weapons and Materials Research Directorate, Army Research Laboratory Aberdeen Proving Grounds, MD 21005-5069
Jennifer Synowczynski
Affiliation:
Weapons and Materials Research Directorate, Army Research Laboratory Aberdeen Proving Grounds, MD 21005-5069
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Abstract

The transfer matrix method (TMM) software (Translight, A. Reynolds [1]) was used to evaluate the photonic band gap (PBG) properties of the periodic arrangement of high permittivity ferroelectric composite (40 wt% Ba0.45Sr0.55TiO3/60 wt% MgO composite, εR = 80, tanδ?= 0.0041 at 10 GHz) in air (or Styrofoam, εR ∼ 1) matrix compared to a lower permittivity material (Al2O3, εR = 11.54, tanδ?= 0.00003 at 10 GHz) in air. The periodic structures investigated included a one-dimensional (1D) stack and a three-dimensional (3D) face centered cubic (FCC) opal structure. The transmission spectrum was calculated for the normalized frequency for all incident angles for each structure. The results show that the bandgaps frequency increased and the bandgap width increased with increased permittivity. The effects of orientation of defects in the opal crystal were investigated. It was found by introducing defects propagation bands were introduced. It was concluded that a full PBG is possible with the high permittivity material.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 692: Symposium H – Progress in Semiconductor Materials for Optoelectronic Applications , 2001 , K5.6.1
Copyright
Copyright © Materials Research Society 2002

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