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Abstract
A laser cavity formed from a single defect in a two-dimensional photonic crystal is demonstrated. The optical microcavity consists of a half wavelength–thick waveguide for vertical confinement and a two-dimensional photonic crystal mirror for lateral localization. A defect in the photonic crystal is introduced to trap photons inside a volume of 2.5 cubic half-wavelengths, approximately 0.03 cubic micrometers. The laser is fabricated in the indium gallium arsenic phosphide material system, and optical gain is provided by strained quantum wells designed for a peak emission wavelength of 1.55 micrometers at room temperature. Pulsed lasing action has been observed at a wavelength of 1.5 micrometers from optically pumped devices with a substrate temperature of 143 kelvin.
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O.J.P. and R.K.L. acknowledge support from the Natural Sciences and Engineering Research Council of Canada. This work was supported by the U.S. Army Research Office (contract DAAH04-96-1-0389) and NSF (contract ECS-9632937).
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Published In
Science
Volume 284 | Issue 5421
11 June 1999
11 June 1999
Submission history
Received: 24 February 1999
Accepted: 10 May 1999
Published in print: 11 June 1999
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