Effective mass anisotropy of hot electrons in nonparabolic conduction bands of n-doped InGaAs films using ultrafast Terahertz pump-probe techniques

F. Blanchard, D. Golde, F. H. Su, L. Razzari, G. Sharma, R. Morandotti, T. Ozaki, M. Reid, M. Kira, S. W. Koch, F. A. Hegmann

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

The anisotropic effective mass of energetic electrons in an isotropic, nonparabolic conduction band is revealed using ultrafast THz-pump-THz-probe techniques in a n-doped InGaAs semiconductor thin film. A microscopic theory is applied to identify the origin of the observed anisotropy and to show that the self-consistent light-matter coupling contributes significantly to the THz response.

Original languageEnglish (US)
Article number107401
JournalPhysical review letters
Volume107
Issue number10
DOIs
StatePublished - Aug 31 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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