Ultrafast nonlinear optical response of the quantum Hall system

E G Kavousanaki,I E Perakis,K M Dani,J Tignon,M Breit,D S Chemla

Munich（2007）

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摘要

The quantum Hall effects (QH) arise in a cold 2D electron gas (2DEG) subject to a perpendicular magnetic field. They result from Coulomb correlations among the 2DEG that populates the highly degenerate Landau level (LL) states. Here we study the coherent nonlinear optical response of the QH system. Recent ultrafast four-wave-mixing (FWM) experiments indicate an important role of the magnetoplasmon (MP) collective excitations of this incompressible fluid.

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关键词

landau levels,high-speed optical techniques,multiwave mixing,quantum hall effect,two-dimensional electron gas,2deg,coulomb correlations,landau level states,coherent nonlinear optical response,cold 2d electron gas,incompressible fluid,magnetoplasmon collective excitations,perpendicular magnetic field,quantum hall effects,ultrafast four-wave-mixing,ultrafast nonlinear optical response,coherence,quantum hall,magnetic materials,optical scattering,landau level,four wave mixing,physics,nonlinear optics,two dimensional electron gas,magnetic field

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