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Modelling of photonic bandgap devices by the leaky mode propagation method

✍ Scribed by Agostino Giorgio; Anna Gina Perri

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
377 KB
Volume
16
Category
Article
ISSN
0894-3370

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✦ Synopsis

Abstract

Main modelling approaches used for investigating the Photonic bandgap (PBG) devices are reviewed. In particular, the model based on Leaky Mode Propagation (LMP) method is described.

A complete analysis of the propagation characteristics, including the determination of modal propagation constants, electromagnetic field harmonics and total field distribution, transmission and reflection coefficients, total forward and backward power flow in the structure, guided and radiated power, and total losses, can be carried out by a computer program based on the LMP approach.

The numerical results have been validated by comparisons with those obtained by using other more complex and expensive models.

The new model shows some significant advantages in terms of very low computational time, absence of any a priori theoretical assumptions and approximations, capability of simulating the actual physical behaviour of the device and fast determination of the bandgap position.Copyright Β© 2003 John Wiley & Sons, Ltd.

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Fast calculation of the propagation constants of leaky and Berenger modes of planar and circular dielectric waveguides terminated by a perfectly matched layer
✍ Hendrik Rogier; Luc Knockaert; DaniΓ«l De Zutter πŸ“‚ Article πŸ“… 2003 πŸ› John Wiley and Sons 🌐 English βš– 142 KB

## Abstract A fast technique is proposed to determine the complex propagation constants of the leaky and Berenger modes of circular dielectric waveguides terminated by a perfectly matched layer (PML). The method relies on a coordinate transformation in the complex plane and uses the approximate ana