Ultrafast coherently controlled currents in GaAs: physics and applications

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dc.contributor.advisorBetz, Markus
dc.contributor.authorSternemann, Elmar
dc.contributor.refereeMeier, Torsten
dc.date.accepted2015-09-29
dc.date.accessioned2015-10-21T12:34:01Z
dc.date.available2015-10-21T12:34:01Z
dc.date.issued2015
dc.description.abstractThis thesis gives new insights into the physics and practical applications of coherently controlled current injection (QUIC) in the prototypical direct band gap semiconductor GaAs. QUIC is a nonlinear optical process that allows to inject electrical currents into solids by all-optical means using two-color laser pulse pairs. The direction of the induced current can be controlled by the relative phase of the pulses. Theoretical calculations predict significant deviations from the original perturbative description of QUIC at elevated excitation intensities. The first part of the thesis presents a collaborative experimental and theoretical study of this regime. In the second part it is demonstrated that QUIC can be utilized to characterize the temporal profile of ultrashort laser pulses. The last part of this thesis discusses the experimental implementation of a proposed QUIC-based current detection scheme.en
dc.identifier.urihttp://hdl.handle.net/2003/34304
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-16381
dc.language.isoende
dc.subjectNonlinear opticsen
dc.subjectUltrafast laser spectroscopyen
dc.subjectCoherent controlde
dc.subjectSemiconductor microstructuresde
dc.subjectGaAsen
dc.subject.ddc530
dc.subject.rswkLaserspektroskopiede
dc.subject.rswkNichtlineare Optikde
dc.subject.rswkHalbleiterde
dc.subject.rswkGalliumarsenidde
dc.titleUltrafast coherently controlled currents in GaAs: physics and applicationsen
dc.typeTextde
dc.type.publicationtypedoctoralThesisen
dcterms.accessRightsopen access

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