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Published April 2000 | Published
Journal Article Open

Emission properties of a defect cavity in a two-dimensional photonic bandgap crystal slab


A single isolated defect within a two-dimensional photonic crystal semiconductor slab is shown to provide a lithographically tunable doubly degenerate emission resonance within the photonic bandgap, with a measured quality factor (Q) of 80-150, depending on the cavity geometry. Spontaneous emission outside the cavity linewidth is below the measurement limit of our system. Stimulated emission from this photonic crystal defect cavity is demonstrated at room temperature under pulsed optical pumping in spite of the large surface-to-volume ratio of this cavity and the associated large nonradiative surface recombination rate.

Additional Information

© 2000 Optical Society of America. Received June 30, 1999; revised manuscript received December 20, 1999. The authors thank Jeffrey Ungar and Se Oh, who are with Ortel Corporation, for supplying the material grown for this paper. This research was supported by the Army Research Office, the National Science Foundation, and the Office of Naval Research. R. K. Lee's work and O. Painter's work are both supported by the National Science and Engineering Research Council of Canada.

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