Localized defect states in two-dimensional photonic crystal slab waveguides: A simple model based upon symmetry analysis

Oskar Painter and Kartik Srinivasan
Phys. Rev. B 68, 035110 – Published 17 July 2003
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Abstract

Localized defect regions within two-dimensional photonic crystal slab waveguides are an attractive method of forming high-quality factor optical resonators with wavelength-scale modal volumes. Using simple symmetry bases, and the tools of group theory, we develop an approximate description of the resonant modes of different photonic crystal defect cavities. Comparison to numerical simulations as well as photoluminescence measurements of actual microfabricated devices demonstrates the power of this modest symmetry analysis in describing the localized defect states within photonic crystals.

  • Received 31 December 2002

DOI:https://doi.org/10.1103/PhysRevB.68.035110

©2003 American Physical Society

Authors & Affiliations

Oskar Painter* and Kartik Srinivasan

  • Department of Applied Physics, California Institute of Technology, Pasadena, California 91125, USA

  • *Electronic address: opainter@its.caltech.edu; http://www.cco.caltech.edu/∼aphhome/painter.html

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Vol. 68, Iss. 3 — 15 July 2003

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