Abstract
Localized defect modes in a two-dimensional photonic crystal slab upon a substrate have been analyzed by a numerical simulation of dipole radiation based on the finite-difference time-domain method. A degenerate pair of the defect mode of spatial symmetry was found in a pseudogap in the spectrum of dipole radiation. We achieved a quality factor as large as 800 by optimizing the sample geometry.
© 2001 Optical Society of America
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