Suzuki phase in two-dimensional photonic crystals

José Sánchez-Dehesa, Felipe Ramos-Mendieta, Jorge Bravo-Abad, Javier Martí, Alejandro Martínez, Andrés García

Producción científica: Contribución a una revistaArtículo de la conferenciarevisión exhaustiva

3 Citas (Scopus)

Resumen

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 (ϵ=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.

Idioma originalInglés
Páginas (desde-hasta)251-259
Número de páginas9
PublicaciónProceedings of SPIE - The International Society for Optical Engineering
Volumen4655
DOI
EstadoPublicada - 25 abr. 2002
EventoPhotonic Bandgap Materials and Devices 2002 - San Jose, Estados Unidos
Duración: 19 ene. 200225 ene. 2002

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© 2002 SPIE.

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