Direct observation of strong light-exciton coupling in thin WS2 flakes.
Opt Express
; 24(7): 7151-7, 2016 Apr 04.
Article
em En
| MEDLINE
| ID: mdl-27137007
ABSTRACT
The strong coupling between excitons and Fabry-Pérot (F-P) cavity modes in tungsten sulfide (WS2) thin layers was studied. By using home-made micro-reflectance spectroscopic technique, we observed the anti-crossing behavior between cavity mode and excitons with flake's thickness dependence. Giant Rabi splitting of ~270 meV for A exciton and ~780 meV for B exciton were obtained from the fitting of the cavity polariton dispersions by use of the coupled oscillators model.
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MEDLINE
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En
Ano de publicação:
2016
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Article