Experimental Determination of Intrinsic Non-Linearities in Semiconductor Microcavities in the Coherent Regime

Autor:	Ph. Roussignol, Jérôme Tignon, Régis André, D. Le Si Dang, R. Romestain, A. Huynh, Claude Delalande
Rok vydání:	2002
Předmět:	Physics Condensed matter physics business.industry Condensed Matter Physics Electronic Optical and Magnetic Materials Four-wave mixing symbols.namesake Semiconductor Maxwell's equations Bloch equations Coulomb Polariton symbols business Excitation Order of magnitude
Zdroj:	physica status solidi (a). 190:345-350
ISSN:	1521-396X 0031-8965
Popis:	We propose a method to determine the intrinsic non-linearities in semiconductor microcavities in the non-perturbative regime. The polariton coherent dynamics is experimentally studied using time-integrated four-wave mixing and analyzed by numerical resolution of the coupled Bloch-Maxwell equations. The relative weight of phase-space filling to Coulomb non-linearities is measured as a function of excitation density and detuning. It is shown that depending on the excitation conditions, phase-space filling can be the dominant non-linearity at carrier densities as low as one order of magnitude below the saturation of the strong coupling regime.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::50f4a10dd3948687df531c40c61f47b6 https://doi.org/10.1002/1521-396x(200204)190:2<345::aid-pssa345>3.0.co Zobrazit plný text záznamu Plný text