Terahertz response of a two-dimensional electron gas

D. Golde; M. Kira; S. W. Koch

doi:10.1117/12.761154

22 February 2008 Terahertz response of a two-dimensional electron gas

D. Golde, M. Kira, S. W. Koch

Proceedings Volume 6892, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII; 68921F (2008) https://doi.org/10.1117/12.761154
Event: Integrated Optoelectronic Devices 2008, 2008, San Jose, California, United States

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.

Citation Download Citation

D. Golde, M. Kira, and S. W. Koch "Terahertz response of a two-dimensional electron gas", Proc. SPIE 6892, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XII, 68921F (22 February 2008); https://doi.org/10.1117/12.761154

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