Dufferwiel, S., Fras, F., Trichet, A. et al. (9 more authors) (2014) Strong exciton-photon coupling in open semiconductor microcavities. Applied Physics Letters, 104 (19). ISSN 0003-6951
Abstract
We present a method to implement 3-dimensional polariton confinement with in-situ spectral tuning of the cavity mode. Our tunable microcavity is a hybrid system consisting of a bottom semiconductor distributed Bragg reflector (DBR) with a cavity containing quantum wells (QWs) grown on top and a dielectric concave DBR separated by a micrometer sized gap. Nanopositioners allow independent positioning of the two mirrors and the cavity mode energy can be tuned by controlling the distance between them. When close to resonance, we observe a characteristic anticrossing between the cavity modes and the QW exciton demonstrating strong coupling. For the smallest radii of curvature concave mirrors of 5.6 μm and 7.5 μm, real-space polariton imaging reveals submicron polariton confinement due to the hemispherical cavity geometry.
Metadata
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| Institution: | The University of Sheffield |
| Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
| Depositing User: | Symplectic Sheffield |
| Date Deposited: | 31 Oct 2014 13:37 |
| Last Modified: | 28 Jul 2015 15:42 |
| Published Version: | http://dx.doi.org/10.1063/1.4878504 |
| Status: | Published |
| Publisher: | American Institute of Physics |
| Identification Number: | https://doi.org/10.1063/1.4878504 |
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