Measuring the ultrafast dynamics of Coulomb correlation effects: Dephasing in nonequilibrium Fermi seas

被引：10

作者：

Mycek, MA

Bigot, JY

Perakis, IE

Chemla, DS

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

[2] VANDERBILT UNIV,DEPT PHYS,NASHVILLE,TN 37235

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 1996年 / 13卷 / 06期

关键词：

D O I：

10.1364/JOSAB.13.001284

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We measure the dynamics of the quantum phase coherence of the wave function describing interacting electrons and holes optically excited into the continuum of a GaAs/AlGaAs quantum well. We achieve this by spectrally resolving both the transient four-wave mixing signal and the differential transmission signal arising from such interacting carriers. We observe a dynamical blue shift of the coherent four-wave mixing emission spectrum with respect to the excitation laser pulse and interpret this as a direct manifestation of the dynamic Coulomb correlation effects in this many-body system. (C) 1996 Optical Society of America.

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页码：1284 / 1290

页数：7

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