EFFECTS OF COHERENT POLARIZATION INTERACTIONS ON TIME-RESOLVED DEGENERATE 4-WAVE-MIXING

被引:254
作者
LEO, K
WEGENER, M
SHAH, J
CHEMLA, DS
GOBEL, EO
DAMEN, TC
SCHMITTRINK, S
SCHAFER, W
机构
[1] AT&T BELL LABS,MURRAY HILL,NJ 07974
[2] FORSCHUNGSZENTRUM JULICH,HOCHSTLEISTUNGSRECHENZENTRUM,W-5170 JULICH,GERMANY
关键词
D O I
10.1103/PhysRevLett.65.1340
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report the first observation of coherent polarization interactions in dense media in time-resolved degenerate four-wave mixing in semiconductors. For near-resonant ultrashort-optical-pulse excitation, these interactions lead to a diffracted signal at negative delay times, with a slope half that for positive delay times. At higher intensities, two temporal maxima appear in the diffracted signal, in agreement with many-body theory. © 1990 The American Physical Society.
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收藏
页码:1340 / 1343
页数:4
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