Spontaneous emission of quantum well excitons in planar dielectric multilayer cavities

The spontaneous emission of quantum well excitons may be significantly altered by embedding the quantum well in a microcavity. We present theoretical results for the spontaneous emission based on the quantum field theory of interaction between excitons and electromagnetic eigenmodes of a multilayer...

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Bibliographic Details
Published in:Solid state communications 1995, Vol.93 (1), p.45-48
Main Author: Jorda, S.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron states
Exact sciences and technology
Excitons and related phenomena
optical properties
Physics
quantum wells
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Summary:The spontaneous emission of quantum well excitons may be significantly altered by embedding the quantum well in a microcavity. We present theoretical results for the spontaneous emission based on the quantum field theory of interaction between excitons and electromagnetic eigenmodes of a multilayer dielectric cavity. Depending on the design of the cavity and the in-plane wavevector Q ‖ the emission can be enhanced or inhibited as compared to a QW not embedded in a cavity. We show that in the exciton-pole-approximation the enhancement/inhibition factor is given by the reciprocal normalization constant of the radiative electromagnetic modes.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(94)00728-4