Terahertz coherent control of optically dark paraexcitons in Cu2O

DOI to cite this document:: 10.5283/epub.19121

Leinß, S. ; Kampfrath, T. ; v. Volkmann, K. ; Wolf, M. ; Steiner, J. T. ; Kira, M. ; Koch, S. W. ; Leitenstorfer, A. ; Huber, Rupert

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Date of publication of this fulltext: 28 Jan 2011 07:16

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Abstract

Intense multiterahertz fields of order megavolts per centimeter are used to coherently promote optically dark and dense paraexcitons in Cu2O from the 1s into the 2p state. The nonlinear field response of the intraexcitonic degrees of freedom is directly monitored in the time domain via ultrabroadband electro-optic sampling. The experimental results are analyzed with a microscopic many-body ...