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

D. T. Nguyen, N. H. Kwong, Z. S. Yang, R. Binder, Arthur L. Smirl

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

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.

Original languageEnglish (US)
Article number181116
JournalApplied Physics Letters
Volume90
Issue number18
DOIs
StatePublished - May 10 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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