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Published February 2002 | Published
Journal Article Open

Three-dimensionally confined modes in micropost microcavities: quality factors and Purcell factors


We present detailed calculations of the mode structure of distributed-Bragg-reflector micropost microcavities. Two methods are used: a first-principles, finite-difference time-domain model, and an approximate, heuristic model based on the separation of variables. We calculate modal quality factors, as well as enhancement of spontaneous emission rates, from single quantum dots in the microcavities. Both ideal and realistic post shapes are considered. The two methods give similar results, and are capable of accurately predicting experimentally measured values.

Additional Information

© 2002 IEEE. Manuscript received July 19, 2001. The work of M. Pelton was supported by the Stanford Graduate Fellowships program. The work of G. S. Solomon was supported by the Army Research Office. The work of J. Vučković and A. Scherer was supported in part by the Caltech MURI Center for Quantum Networks under ARO Grant DAAD19-00-1-0374. The authors thank H. Deng for valuable assistance.

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