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Proceedings Paper

Coherent oscillations between polariton vortex and anti-vortex states in an elliptical resonator
Author(s): G. Nardin; Y. Léger; B. Pietka; F. Morier-Genoud; B. Deveaud-Plédran
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Paper Abstract

In this experimental work, we optically excite the eigenmodes of an elliptical resonator in a semiconductor micro-cavity. Using a pulsed excitation, we create a superposition of eigenmodes, and image the time evolution of the coherent emission pattern. Oscillations between vortex and anti-vortex states are observed, and remarkably well described within the Poincaré sphere representation for an eigenmode containing an orbital angular momentum. A semiconductor quantum well is embedded in the microcavity structure. The system is operated in the strong light matter coupling regime, where the eigenmodes are hybrid half-photonic half-excitonic quasiparticles called exciton polaritons.

Paper Details

Date Published: 21 February 2011
PDF: 6 pages
Proc. SPIE 7937, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV, 79371Y (21 February 2011); doi: 10.1117/12.885513
Show Author Affiliations
G. Nardin, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
Y. Léger, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
B. Pietka, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
F. Morier-Genoud, Ecole Polytechnique Fédérale de Lausanne (Switzerland)
B. Deveaud-Plédran, Ecole Polytechnique Fédérale de Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 7937:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV
Kong-Thon Tsen; Jin-Joo Song; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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