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Proceedings Paper

Engineering high harmonic generation in semiconductors via pulse shaping
Author(s): Matthias Reichelt; Andre Hildebrandt; Andrea Walther; Jens Förstner; Torsten Meier
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Paper Abstract

High harmonic generation is investigated for a two-band model of a semiconductor nanostructure. Similar to an atomic two-level system, the semiconductor emits high harmonic radiation. We show how one can specifically enhance the emission for a given frequency by applying a non-trivially shaped laser pulse. Therefore, the semiconductor Bloch equations including the interband and additionally the intraband dynamics are solved numerically and the spectral shape of the input pulse is computed via an optimization algorithm. It is demonstrated that desired emission frequencies can be favored even though the overall input power is kept constant. We also suggest special metallic nano geometries to achieve enhanced localized optical fields. They are found by geometric optimization.

Paper Details

Date Published: 20 February 2012
PDF: 7 pages
Proc. SPIE 8260, Ultrafast Phenomena and Nanophotonics XVI, 82601L (20 February 2012); doi: 10.1117/12.906338
Show Author Affiliations
Matthias Reichelt, Univ. Paderborn (Germany)
Andre Hildebrandt, Univ. Paderborn (Germany)
Andrea Walther, Univ. Paderborn (Germany)
Jens Förstner, Univ. Paderborn (Germany)
Torsten Meier, Univ. Paderborn (Germany)

Published in SPIE Proceedings Vol. 8260:
Ultrafast Phenomena and Nanophotonics XVI
Markus Betz; Abdulhakem Y. Elezzabi; Jin-Joo Song; Kong-Thon Tsen, Editor(s)

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