Resonant add-drop filter based on a photonic quasicrystal

We present a numerical study of optical properties of an octagonal quasi-periodic lattice of dielectric rods. We report on a complete photonic bandgap in TM polarization up to extremely low dielectric constants of rods. The first photonic bandgap remains open down to dielectric constant as small as...

Full description

Saved in:
Bibliographic Details
Published in:Optics express 2005-02, Vol.13 (3), p.826-835
Main Authors: Romero-Vivas, J, Chigrin, D, Lavrinenko, A, Sotomayor Torres, C
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present a numerical study of optical properties of an octagonal quasi-periodic lattice of dielectric rods. We report on a complete photonic bandgap in TM polarization up to extremely low dielectric constants of rods. The first photonic bandgap remains open down to dielectric constant as small as epsilon = 1.6 (n = 1.26). The properties of an optical microcavity and waveguides are examined for the system of rods with dielectric constant epsilon = 5.0 (n = 2.24) in order to design an add-drop filter. Proposed add-drop filter is numerically characterized and further optimized for efficient operation. The two-dimensional finite difference time domain method was exploited for numerical calculations. We provide a numerical evidence of effective add-drop filter based on low index material, thus opening further opportunities for application of low refractive index materials in photonic bandgap optics.
ISSN:1094-4087
1094-4087
DOI:10.1364/OPEX.13.000826