Interaction of strong single-cycle terahertz pulses with semiconductor quantum wells

An experiment-theory comparison is presented to demonstrate terahertz-induced extreme-nonlinear transients in a GaAs/AlGaAs quantum-well system. The terahertz-pump and optical-probe experiments show pronounced spectral modulations of the light- and heavy-hole excitonic resonances. Excellent agreemen...

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Bibliographic Details
Published in:Physical review letters 2007-12, Vol.99 (23), p.237401-237401, Article 237401
Main Authors: Danielson, J R, Lee, Yun-Shik, Prineas, J P, Steiner, J T, Kira, M, Koch, S W
Format: Article
Language:English
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Summary:An experiment-theory comparison is presented to demonstrate terahertz-induced extreme-nonlinear transients in a GaAs/AlGaAs quantum-well system. The terahertz-pump and optical-probe experiments show pronounced spectral modulations of the light- and heavy-hole excitonic resonances. Excellent agreement with the results of microscopic many-body calculations is obtained, identifying clear ponderomotive contributions and the generation of terahertz harmonics.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.99.237401