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

URN to cite this document:
urn:nbn:de:bvb:355-epub-220308
Karch, Johannes
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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