Confinement of band-edge modes in a photonic crystal slab

Publication Type:
Journal Article
Optics Express, 2007, 15 (17), pp. 10890 - 10902
Issue Date:
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We study the confinement of low group velocity band-edge modes in a photonic crystal slab. We use a rigorous, three dimensional, finite-difference time-domain method to compute the electromagnetic properties of the modes of the photonic structures. We show that by combining a defect mode approach with the high-density of states associated with bandedge modes, one can design compact, fabrication-tolerant, high-Q photonic microcavities. The electromagnetic confinement properties of these cavities can foster enhanced radiation dynamics and should be well suited for ultralow-threshold microlasers and cavity quantum electrodynamics. © 2007 Optical Society of America.
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