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Published April 17, 2000 | Published
Book Section - Chapter Open

FDTD calculation of the spontaneous emission coupling factor in optical microcavities

Abstract

We present the detailed analysis of the spontaneous emission coupling factor (β factor) of the micro cavity based on a 2D photonic crystal in an optically thin dielectric slab. We investigate the maximum β value that can be achieved with this micro cavity and discuss its dependence on the quantum well position, as well as on the pumping area diameter. The analysis is performed using the general method for the β factor calculation that we developed. The method is based on the classical model for atomic transitions in a semiconductor active medium. Finite difference time domain method is used to solve the electromagnetic fields of the system and calculate the total radiated energy, as well as the energy radiated into the mode of interest.

Additional Information

© 2000 Society of Photo-optical Instrumentation Engineers (SPIE). The authors would like to thank Marko Lončar for many helpful suggestions. This work was supported by the NSF under contract ECS-9632937 and by DARPA under the contract N00014-96-1-1295.

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