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Nonlinear Intersubband Photoabsorption in Asymmetric Single Quantum Wells

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http://hdl.handle.net/10355/7611
dc.contributor.authorWijewardane, Harshani Ovamini, 1971-eng
dc.contributor.authorUllrich, Carsten A.eng
dc.date.issued2005eng
dc.descriptiondoi:10.1063/1.1994513eng
dc.description.abstractA density-matrix approach combined with time-dependent density-functional theory is used to calculate the intersubband photoabsorption in a strongly driven, DC-biased GaAs/AlGaAs single quantum well. For certain frequencies and intensities of the driving field, optical bistability is observed. Compared to a full time propagation of the density matrix, the commonly used two-level rotating wave approximation becomes less and less accurate for increasing asymmetry.eng
dc.description.sponsorshipThe authors acknowledge support from the donors of the Petroleum Research Fund, administered by the ACS. C.A.U. is a Cottrell Scholar of the Research Corporation.eng
dc.identifier.citationAIP Conf. Proc. June 30, 2005 Volume 772, pp. 1141-1142eng
dc.identifier.issn0094-243Xeng
dc.identifier.urihttp://hdl.handle.net/10355/7611eng
dc.languageEnglisheng
dc.publisherAmerican Institute of Physicseng
dc.relation.ispartofcollectionUniversity of Missouri--Columbia. College of Arts and Sciences. Department of Physics and Astronomy. Physics and Astronomy publicationseng
dc.subjectdensity functional theoryeng
dc.subjectlocal density approximationeng
dc.subjectgradient and other correctionseng
dc.subject.lcshQuantum wellseng
dc.subject.lcshDensity functionalseng
dc.subject.lcshDensityeng
dc.subject.lcshApproximation theoryeng
dc.subject.lcshConjugate gradient methodseng
dc.titleNonlinear Intersubband Photoabsorption in Asymmetric Single Quantum Wellseng
dc.typeArticleeng


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