High-order harmonic generation in the presence of a resonance

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Tudorovskaya, M.; Lein, M.: High-order harmonic generation in the presence of a resonance. In: Physical Review A - Atomic, Molecular, and Optical Physics 84 (2011), Nr. 1, 13430. DOI: https://doi.org/10.1103/PhysRevA.84.013430

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Sum total of downloads: 1,032




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Abstract: 
We investigate high-order harmonic generation from laser-irradiated systems that support a shape resonance. From the numerical solution of the time-dependent Schrödinger equation, we calculate the harmonic spectra and the time-frequency analysis of the harmonic intensity and phase. The analysis reveals the separate contributions of the short and long trajectories as well as the resonance. A range of harmonics is strongly enhanced by the presence of the resonance irrespective of the pulse length. The signature of the resonance remains significant after coherent summation over intensities as a simple method to simulate macroscopic effects. The time-frequency analysis supports the recently proposed four-step mechanism of the enhanced harmonic generation process. © 2011 American Physical Society.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden.
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2011
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
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1 image of flag of Germany Germany 895 86.72%
2 image of flag of United States United States 38 3.68%
3 image of flag of China China 24 2.33%
4 image of flag of Russian Federation Russian Federation 16 1.55%
5 image of flag of United Kingdom United Kingdom 6 0.58%
6 image of flag of France France 5 0.48%
7 image of flag of Canada Canada 5 0.48%
8 image of flag of No geo information available No geo information available 4 0.39%
9 image of flag of Netherlands Netherlands 3 0.29%
10 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 3 0.29%
    other countries 33 3.20%

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