FEMTOSECOND TIME-RESOLVED FREE-INDUCTION DECAY OF ROOM-TEMPERATURE EXCITONS IN GAAS QUANTUM-WELLS

被引：19
作者：
MYCEK, MA
WEISS, S
BIGOT, JY
SCHMITTRINK, S
CHEMLA, DS
SCHAEFER, W
机构：
[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, HOECHSTLEISTUNGSRECHENZENTRUM, W-5170 JULICH 1, GERMANY
[2] LAWRENCE BERKELEY LAB, DIV MAT SCI, BERKELEY, CA 94720 USA
[3] UNIV MARBURG, DEPT PHYS, W-3550 MARBURG, GERMANY
[4] UNIV MARBURG, CTR MAT SCI, W-3550 MARBURG, GERMANY
来源：
APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 21期
关键词：
D O I：
10.1063/1.106889
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We directly resolve the femtosecond free-induction decay of excitons in GaAs quantum wells at room temperature by upconverting the diffracted signal from a transient four-wave-mixing experiment. At high laser intensities, we find significant deviations from the temporal evolution of the time-integrated and peak amplitude signals, which we attribute to many-body Coulomb effects.
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页码：2666 / 2668
页数：3
相关论文
共 9 条
[1]  
Kim D., COMMUNICATION
[2]   EFFECTS OF COHERENT POLARIZATION INTERACTIONS ON TIME-RESOLVED DEGENERATE 4-WAVE-MIXING [J].
LEO, K ;
WEGENER, M ;
SHAH, J ;
CHEMLA, DS ;
GOBEL, EO ;
DAMEN, TC ;
SCHMITTRINK, S ;
SCHAFER, W .
PHYSICAL REVIEW LETTERS, 1990, 65 (11) :1340-1343
[3]   PICOSECOND STIMULATED PHOTON-ECHO DUE TO INTRINSIC EXCITATIONS IN SEMICONDUCTOR MIXED-CRYSTALS [J].
NOLL, G ;
SIEGNER, U ;
SHEVEL, SG ;
GOBEL, EO .
PHYSICAL REVIEW LETTERS, 1990, 64 (07) :792-795
[4]  
SCHAEFER WP, UNPUB
[5]   STOCHASTIC-THEORY OF TIME-RESOLVED 4-WAVE-MIXING IN INTERACTING MEDIA [J].
SCHMITTRINK, S ;
MUKAMEL, S ;
LEO, K ;
SHAH, J ;
CHEMLA, DS .
PHYSICAL REVIEW A, 1991, 44 (03) :2124-2129
[6]   PHOTON-ECHOES FROM TWO-DIMENSIONAL EXCITONS IN GAAS-ALGAAS QUANTUM WELLS [J].
SCHULTHEIS, L ;
STURGE, MD ;
HEGARTY, J .
APPLIED PHYSICS LETTERS, 1985, 47 (09) :995-997
[7]   OBSERVATION OF TIME-RESOLVED PICOSECOND STIMULATED PHOTON-ECHOES AND FREE POLARIZATION DECAY IN GAAS/ALGAAS MULTIPLE QUANTUM-WELLS [J].
WEBB, MD ;
CUNDIFF, ST ;
STEEL, DG .
PHYSICAL REVIEW LETTERS, 1991, 66 (07) :934-937
[8]   LINE-SHAPE OF TIME-RESOLVED 4-WAVE-MIXING [J].
WEGENER, M ;
CHEMLA, DS ;
SCHMITTRINK, S ;
SCHAFER, W .
PHYSICAL REVIEW A, 1990, 42 (09) :5675-5683
[9]   SPATIAL OPTICAL PARAMETRIC COUPLING OF PICOSECOND LIGHT-PULSES AND TRANSVERSE RELAXATION EFFECT IN RESONANT MEDIA [J].
YAJIMA, T ;
TAIRA, Y .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1979, 47 (05) :1620-1626
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