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Microscopic theory of the semiconductor terahertz response
Author(s) -
Kira Mackillo,
Hoyer Walter,
Koch Stephan W.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200303160
Subject(s) - terahertz radiation , semiconductor , microscopic theory , drude model , physics , excited state , condensed matter physics , limit (mathematics) , effective mass (spring–mass system) , quantum mechanics , mathematics , mathematical analysis
A microscopic theory for the terahertz response of excited semiconductor systems is presented. It is verified that the theory yields the correct effective‐mass Drude limit. For a fully interacting incoherent system, the terahertz response is shown to be determined by the electron–hole correlations. The theory is evaluated for the example of excitonic populations in a quantum‐well structure.