Mechanism of all-optical spin-dependent polarization switching in Bragg-spaced quantum wells

被引：9
|
作者：
Nguyen, D. T. [1 ]
Kwong, N. H.
Yang, Z. S.
Binder, R.
Smirl, Arthur L.
机构：
[1] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA
[2] Univ Iowa, Lab Photon & Quantum Elect, Iowa City, IA 52242 USA
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 18期
关键词：
D O I：
10.1063/1.2735673
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The authors outline a microscopic theory of pump-induced anisotropy in the optical response of Bragg-spaced quantum wells (BSQWs). Their theory explains the manipulation of the band structure of the BSQWs by the pump through the microscopic interactions between excitons in the quantum wells. They apply their theory to understand the mechanism of an all-optical polarization switch implemented on a BSQW structure. They trace the relation between the strongly spin-dependent exciton-exciton interactions and the switching signal. Reasonably good agreement is found between their theoretical results and experimental data. (c) 2007 American Institute of Physics.
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页数：3
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