Structure and dispersion of exciton-trion-polaritons in two-dimensional materials: Experiments and theory
| Autor: | A. Nick Vamivakas, Christina Manolatou, Minwoo Jung, Gennady Shvets, Farhan Rana, Okan Koksal |
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| Rok vydání: | 2021 |
| Předmět: |
Condensed Matter::Quantum Gases
Physics Photon Condensed Matter - Mesoscale and Nanoscale Physics Strongly Correlated Electrons (cond-mat.str-el) Condensed matter physics Condensed Matter::Other Exciton FOS: Physical sciences Physics::Optics Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Coupling (probability) 01 natural sciences 3. Good health 010305 fluids & plasmas Condensed Matter - Strongly Correlated Electrons Condensed Matter::Materials Science Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Dispersion (optics) Coulomb Polariton Trion 010306 general physics Electronic band structure |
| Zdroj: | Physical Review Research. 3 |
| ISSN: | 2643-1564 |
| DOI: | 10.1103/physrevresearch.3.033064 |
| Popis: | The nature of trions and their interaction with light has remained a puzzle. The composition and dispersion of polaritons involving trions provide insights into this puzzle. Trions and excitons in doped two-dimensional (2D) materials are not independent excitations but are strongly coupled as a result of Coulomb interactions. When excitons in doped 2D materials are also strongly coupled with light inside an optical waveguide, the resulting polariton states are coherent superpositions of exciton, trion, and photon states. We realize these exciton-trion-polaritons by coupling an electron-doped monolayer of two-dimensional material MoSe2 to the optical mode in a photonic crystal waveguide. Our theoretical model, based on a many-body description of these polaritons, reproduces the measured polariton energy band dispersion and Rabi splittings with excellent accuracy. Our work sheds light on the structure of trion states in 2D matrials and also on the indirect mechanism by which they interact with light. Comment: 12 Pages, 5 Figures, and one Supplementary Material Section. Slightly modified from the previous version |
| Databáze: | OpenAIRE |
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