Microscopic theory of the extremely nonlinear terahertz response of semiconductors

Daniel Golde, Mackillo Kira, Torsten Meier, Stephan W. Koch

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

The extreme nonlinear terahertz response of initially unexcited intrinsic semiconductor nanostructures is studied theoretically by solving extended semiconductor Bloch equations numerically. The coupled dynamics of intraband acceleration and multiphoton interband transitions leads to high-harmonic generation up to several tens of the exciting terahertz frequency. It is shown that the actual cut-off frequency is determined by the band structure and not by the excitation strength.

Original languageEnglish (US)
Pages (from-to)863-866
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume248
Issue number4
DOIs
StatePublished - Apr 1 2011

Keywords

  • Extreme nonlinear optics
  • High harmonics
  • Microscopic theory
  • Terahertz excitations

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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