Coherent excitation spectroscopy on inhomogeneous exciton ensembles

被引:29
作者
Euteneuer, A [1 ]
Finger, E
Hofmann, M
Stolz, W
Meier, T
Thomas, P
Koch, SW
Rühle, WW
Hey, R
Ploog, K
机构
[1] Univ Marburg, Zentrum Mat Wissensch, Fachbereich Phys & Wissensch, D-35032 Marburg, Germany
[2] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany
关键词
D O I
10.1103/PhysRevLett.83.2073
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A new spectroscopic technique is demonstrated on three characteristically different semiconductor quantum-well samples. Coherent excitation spectroscopy reveals coherent coupling and effectively suppresses the signatures of inhomogeneous broadening and incoherent transfer between various excitonic states in quantum wells. Coherently coupled homogeneous subsystems are analyzed in an inhomogeneously broadened excitonic ensemble.
引用
收藏
页码:2073 / 2076
页数:4
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