Phys. Rev. B 68, 035110 (2003) [23 pages]Localized defect states in two-dimensional photonic crystal slab waveguides: A simple model based upon symmetry analysisReceived 31 December 2002; published 17 July 2003 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. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.68.035110
DOI:
10.1103/PhysRevB.68.035110
PACS:
42.70.Qs, 42.55.Sa, 42.60.Da, 42.55.Px
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