Room Temperature Chiral Coupling of Valley Excitons with Spin-Momentum Locked Surface Plasmons
Source abstract
Abstract
We demonstrate room temperature chiral coupling of valley excitons in a transition metal dichalcogenide monolayer with spin-momentum locked surface plasmons. At the onset of the strong coupling regime, we measure spin-selective excitation of directional flows of polaritons. Operating under such conditions, our platform yields surprisingly robust intervalley contrasts (ca. 40%) and coherence (ca. 5–8%) as opposed to their total absence for the uncoupled valley excitons at room temperature. These results open rich possibilities, easy to implement, in the context of chiral optical networks.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Neural Networks and Reservoir Computing · Strong Light-Matter Interactions · Plasmonic and Surface Plasmon Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
ISIS and icFRC, Université de Strasbourg and CNRS, UMR 7006, F-67000 Strasbourg, France
Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France
Dutch Institute for Fundamental Energy Research, Eindhoven, The Netherlands
Mechanical Engineering and Mechatronics Department and Electrical Engineering and Electronics Department, Ariel University, Ariel 40700, Israel
Funding
Agence Nationale de la Recherche · Ministry of Science, Technology and Space · Institut Universitaire de France
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