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Proceedings Paper

Terahertz response of a two-dimensional electron gas
Author(s): D. Golde; M. Kira; S. W. Koch
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Paper Abstract

The terahertz response of a two-dimensional electron gas (2DEG) is investigated theoretically. The developed microscopic model shows that the terahertz absorption sensitively detects Coulomb-induced many-body correlations within the entire 2DEG system. In particular, the resulting response follows from a nontrivial competition between the ponderomotive and the Coulomb-correlation contributions. The result is in good agreement with recent experiments while the response cannot be explained with a simple Drude-model analysis.

Paper Details

Date Published: 22 February 2008
PDF: 9 pages
Proc. SPIE 6892, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII, 68921F (22 February 2008); doi: 10.1117/12.761154
Show Author Affiliations
D. Golde, Philipps Univ. (Germany)
M. Kira, Philipps Univ. (Germany)
S. W. Koch, Philipps Univ. (Germany)


Published in SPIE Proceedings Vol. 6892:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII
Jin-Joo Song; Kong-Thon Tsen; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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