Terahertz detection of many-body signatures in semiconductor heterostructures

Sangam Chatterjee, Torben Grunwald, Stephan W. Koch, Galina Khitrova, Hyatt M. Gibbs, Rudolf Hey

Research output: Chapter in Book/Report/Conference proceedingChapter


This article reviews our THz-spectroscopy results on the intra-excitonic transitions of different III-V multi quantum well structures. Following a brief introduction to THz Time-Domain Spectroscopy a detailed description to the data analysis and extraction of refractive index and absorption is given. The behavior of the induced excitonic THz absorption in GaAs/(AlGa)As and (GaIn)As/GaAs multi quantum well structures is compared. Good agreement with previous experiments on the GaAs/(AlGa)As system [1,2] is obtained. A distinctly different behaviour is observed for the (GaIn)As/GaAs structures.

Original languageEnglish (US)
Title of host publicationAdvances in Solid State Physics
EditorsRolf Haug
Number of pages12
StatePublished - 2009
Externally publishedYes

Publication series

NameAdvances in Solid State Physics
ISSN (Print)1438-4329

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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