7 March 2014 Formation and control of transverse patterns in a quantum fluid of microcavity polaritons
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Abstract
Transverse patterns in polariton fluids were recently studied as promising candidates for all-optical low-intensity switching. Here, we demonstrate these patterns in a specifically designed double-cavity system. We theoretically and experimentally analyse their formation and optical control. Our detailed theoretical analysis of the coupled nonlinear dynamics of the optical fields inside the double-cavity and the excitonic excitations inside the embedded semiconductor quantum wells is firmly based on a microscopic many-particle theory. Our calculations in the time domain enable us to study both the ultrafast transient dynamics of the patterns and their steady-state behavior under stationary excitation conditions. The patterns we report and analyze go beyond what can be observed and understood in a simple scalar quantum field. We find that polarization-selective excitation of the polaritons leads to a complex interplay between longitudinal-transverse splitting of the cavity modes and the spin-dependent interactions of the polaritons' excitonic component.
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P. Lewandowski, V. Ardizzone, Y. C. Tse, N. H. Kwong, M. H. Luk, A. Lücke, M. Abbarchi, J. Bloch, E. Baudin, E. Galopin, A. Lemaître, P. T. Leung, Ph. Roussignol, R. Binder, J. Tignon, S. Schumacher, "Formation and control of transverse patterns in a quantum fluid of microcavity polaritons", Proc. SPIE 8984, Ultrafast Phenomena and Nanophotonics XVIII, 89840X (7 March 2014); doi: 10.1117/12.2037174; https://doi.org/10.1117/12.2037174
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