| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1554896 | Superlattices and Microstructures | 2008 | 4 Pages |
Abstract
Pyramidal microcavities are a new class of optical resonators with potentially small mode volume and high quality factor. Our GaAs pyramids with embedded InGaAs quantum dots are placed on top of GaAs/AlAs distributed Bragg reflectors to increase the optical confinement at the base of the pyramids. The pyramidal shape is achieved by a wet-chemical etching process using an AlAs sacrificial layer. Temperature-dependent micro-photoluminescence measurements are used to verify optical modes.
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
M. Karl, F.M. Weber, J. Lupaca-Schomber, S. Li, T. Passow, W. Löffler, H. Kalt, M. Hetterich,