Affiliation:
1. University of Science and Technology of China
2. University of Oldenburg
3. Friedrich Schiller University
4. Fraunhofer-Institute for Applied Optics and Precision Engineering IOF
5. Max Planck School of Photonics
6. National Institute for Materials Science
7. Arizona State University
Abstract
Spatial confinement has been frequently engineered to control the flow and relaxation dynamics of exciton polaritons. While widely investigated in GaAs microcavities, exciton-polariton coupling between discretized polariton modes arising from spatially confined 2D crystals been has been less exhaustively studied. Here, we use coherent 2D photoluminescence-detected micro-spectroscopy to detect oscillating 2D peaks exclusively from a spatial trap in a microcavity with an embedded van-der-Waals heterostructure at room temperature. We observe a wide variation of oscillatory phases as a function of spectral position within the 2D spectrum, which suggests the existence of a coupling between the discretized polariton modes. The latter is accompanied by the generation of coherent phonons.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
European Research Council
Japan Society for the Promotion of Science
U.S. Department of Energy
Division of Electrical, Communications and Cyber Systems
Division of Materials Research
Division of Civil, Mechanical and Manufacturing Innovation
Bundesministerium für Bildung und Forschung
European Social Fund
Freistaat Thüringen
Julius-Maximilians-Universität Würzburg
Subject
Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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