Coherent oscillations between polariton vortex and anti-vortex states in an elliptical resonator

G. Nardin; Y. Léger; B. Pietka; F. Morier-Genoud; B. Deveaud-Plédran

doi:10.1117/12.885513

21 February 2011 Coherent oscillations between polariton vortex and anti-vortex states in an elliptical resonator

G. Nardin, Y. Léger, B. Pietka, F. Morier-Genoud, B. Deveaud-Plédran

Proceedings Volume 7937, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV; 79371Y (2011) https://doi.org/10.1117/12.885513
Event: SPIE OPTO, 2011, San Francisco, California, United States

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.

Citation Download Citation

G. Nardin, Y. Léger, B. Pietka, F. Morier-Genoud, and B. Deveaud-Plédran "Coherent oscillations between polariton vortex and anti-vortex states in an elliptical resonator", Proc. SPIE 7937, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV, 79371Y (21 February 2011); https://doi.org/10.1117/12.885513

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