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Proceedings Paper

Layered cylinders in a 2D square lattice
Author(s): D. L. Romero-Antequera; A. Alejo-Molina; J. J. Sánchez-Mondragón
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Paper Abstract

We present the characterization of a photonic crystal slab with a square lattice, whose basis elements are layered cylinders. The cylinders are conceived as glass cores and subsequent layers of two alternating media with different refractive indices, the thickness of each layer is a quarter of a tuning wavelength within the media. The band structure in the dispersion relation is computed by means of numerical simulation and compared to the band structure of a square lattice with plain cylinders, with the same size, and refractive index equal to the average index of the layered ones. We have found that the band structure shrinks to lower frequencies as the number of full periods of layers increases, although keeping the average refractive index and filling factor. This shrink occurs even when the index contrast is kept constant.

Paper Details

Date Published: 4 August 2009
PDF: 5 pages
Proc. SPIE 7386, Photonics North 2009, 738618 (4 August 2009); doi: 10.1117/12.839817
Show Author Affiliations
D. L. Romero-Antequera, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
A. Alejo-Molina, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)
J. J. Sánchez-Mondragón, Instituto Nacional de Astrofísica, Óptica y Electrónica (Mexico)

Published in SPIE Proceedings Vol. 7386:
Photonics North 2009
Réal Vallée, Editor(s)

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