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14 March 2016 High-harmonic generation in solids
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Abstract
A microscopic theory is presented to describe high-harmonic generation in solids with the semiconductor-Bloch equations. The approach includes the relevant interband polarizations and intraband currents. The appearance of even harmonic orders is shown to require at least three electronic bands and a mutual interband coupling between them. In experimental and theoretical time-resolved studies, this also manifests as a unipolar emission signature of the high-harmonic radiation.
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U. Huttner, M. Hohenleutner, F. Langer, O. Schubert, M. Knorr, R. Huber, S. W. Koch, and M. Kira "High-harmonic generation in solids", Proc. SPIE 9746, Ultrafast Phenomena and Nanophotonics XX, 974607 (14 March 2016); https://doi.org/10.1117/12.2207870
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