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Orbital photocurrents induced by terahertz laser radiation in multi-valley semiconductors

Karch, Johannes (2011) Orbital photocurrents induced by terahertz laser radiation in multi-valley semiconductors. Dissertationsreihe der Fakultät für Physik der Universität Regensburg 22, PhD, Universität Regensburg.

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Date of publication of this fulltext: 14 Sep 2011 08:52

Abstract (English)

The investigation of photo induced electric currents in the terahertz frequency range is a vastly efficient tool for the study of nonequilibrium processes in low-dimensional structures. In this work, non-linear transport phenomena in graphene as well as in silicon – both being multi-valley semiconductors – driven by the free-carrier absorption of electromagnetic radiation are explored. It is ...

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Translation of the abstract (German)

Die Untersuchung photo-induzierter elektrischer Ströme im Terahertz-Frequenzbereich ist ein äußerst effizientes Werkzeug zur Erforschung von Nichtgleichgewichtsprozessen in niederdimensionalen Strukturen. Diese Arbeit befasst sich mit nichtlinearen Transport-Phänomenen in den Multi-Tal-Halbleitern Graphen und Silizium hervorgerufen durch Absorption langwelliger, elektromagnetischer Strahlung. Es ...

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Item type:Thesis of the University of Regensburg (PhD)
Series of the University of Regensburg:Dissertationsreihe der Fakultät für Physik der Universität Regensburg
Date:14 September 2011
Referee:Prof. Dr. Sergey D. Ganichev and Prof. Dr. Christian Schüller and Prof. Dr. Christian Back and Prof. Dr. Klaus Richter
Date of exam:20 July 2011
Institutions:Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev
Keywords:Graphene, silicon, valley, THz, photocurrent, spectroscopy, optoelectronics, valleytronics, Circular ac Hall effect, Dynamic Hall effect, valley current, laser, CPGE, LPGE, photogalvanic effect, photon drag effect, nanostructure, MOSFET, helicity, polarization
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:22030
Owner only: item control page

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