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Accurate Time Domain Method for Simulation of Microstructured Electromagnetic and Photonic Structures

By Vijay Janyani, Trevor M. Benson and Ana Vukovic

Abstract

Abstract—A time-domain numerical model within the framework of transmission line modeling (TLM) is developed to simulate electromagnetic pulse propagation inside multiple microcavities forming photonic crystal (PhC) structures. The model developed is quite general and is capable of simulating complex electromagnetic problems accurately. The field quantities can be mapped onto a passive electrical circuit equivalent what ensures that TLM is provably stable and conservative at a local level. Furthermore, the circuit representation allows a high level of hybridization of TLM with other techniques and lumped circuit models of components and devices. A photonic crystal structure formed by rods (or blocks) of high-permittivity dieletric material embedded in a low-dielectric background medium is simulated as an example. The model developed gives vital spatio-temporal information about the signal, and also gives spectral information over a wide frequency range in a single run. The model has wide applications in microwave communication systems, optical waveguides and electromagnetic materials simulations

Topics: Numerical Simulation, Transmission Line Modeling
Year: 2011
OAI identifier: oai:CiteSeerX.psu:10.1.1.193.2433
Provided by: CiteSeerX
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