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Proceedings Paper

Suzuki phase in two-dimensional photonic crystals
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Paper Abstract

When rows of cylinders are periodically removed from a hexagonal array of dielectric cylinders, a new two-dimensional (2D) photonic crystal (PC) arises. The new structure consists of a lattice of vacancies embedded in the initial hexagonal lattice. We called it Suzuki Phase because it remains similar structures discovered in the 60's by K. Suzuki studying alkali halides. A plane-wave algorithm as well as a 2D finite difference-time-domain method has been employed to study the photonic properties of this PC as a function of the filling fraction (f) in the case of high dielectric cylinders ((epsilon) equals 13.6) in air. For TM- modes, it is shown that in a certain range of f an isolated miniband appears in the gap of the initial hexagonal lattice. The miniband, which is created by the coupling of defect states, is described by a tight-binding formalism with two parameters. Also, the frequencies of the two possible vacancy defects in the SP have been obtained and their symmetry analyzed.

Paper Details

Date Published: 25 April 2002
PDF: 9 pages
Proc. SPIE 4655, Photonic Bandgap Materials and Devices, (25 April 2002); doi: 10.1117/12.463879
Show Author Affiliations
Jose Sanchez-Dehesa, Univ. Autonoma de Madrid (Spain)
Felipe Ramos-Mendieta, Univ. de Sonora (Mexico)
Jorge Bravo-Abad, Univ. Autonoma de Madrid (Spain)
Javier Marti, Univ. Politecnica de Valencia (Spain)
Alejandro Martinez, Univ. Politecnica de Valencia (Spain)
Andres Garcia, Univ. Politecnica de Valencia (Spain)

Published in SPIE Proceedings Vol. 4655:
Photonic Bandgap Materials and Devices
Ali Adibi; Axel Scherer; Shawn-Yu Lin, Editor(s)

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