Strong exciton-photon coupling in open semiconductor microcavities
Creators
- 1. Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH (United Kingdom)
- 2. Department of Materials, University of Oxford, Oxford OX1 3PH (United Kingdom)
- 3. EPSRC National Centre for III-V Technologies, University of Sheffield, Sheffield S1 3JD (United Kingdom)
Description
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
Additional details
Identifiers
- DOI
- 10.1063/1.4878504;
- arXiv
- arXiv:1403.4830v1;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 104
- Journal Issue
- 19
- Journal Page Range
- p. 192107-192107.4
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45094635
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- DIELECTRIC MATERIALS; EXCITONS; PHOTONS; QUANTUM WELLS; SEMICONDUCTOR MATERIALS; STRONG-COUPLING MODEL
- Descriptors DEC
- BOSONS; ELEMENTARY PARTICLES; MASSLESS PARTICLES; MATERIALS; MATHEMATICAL MODELS; NANOSTRUCTURES; PARTICLE MODELS; QUASI PARTICLES
Optional Information
- Notes
- (c) 2014 AIP Publishing LLC