Emission times in high-order harmonic generation

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Chirilä, C.C.; Dreissigacker, I.; van der Zwan, E.V.; Lein, M.: Emission times in high-order harmonic generation. In: Physical Review A - Atomic, Molecular, and Optical Physics 81 (2010), Nr. 3, 33412. DOI: https://doi.org/10.1103/PhysRevA.81.033412

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Sum total of downloads: 102




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Abstract: 
We calculate the emission times of the radiation in high-order harmonic generation using the Gabor transform of numerical data obtained from solving the time-dependent Schrödinger equation in one, two, and three dimensions. Both atomic and molecular systems, including nuclear motion, are investigated. Lewenstein model calculations are used to gauge the performance of the Gabor method. The resulting emission times are compared against the classical simple man's model as well as against the more accurate quantum orbit model based on complex trajectories. The influence of the range of the binding potential (long or short) on the level of agreement is assessed. Our analysis reveals that the short-trajectory harmonics are emitted slightly earlier than predicted by the quantum orbit model. This partially explains recent experimental observations for atoms and molecules. Furthermore, we observe a distinct signature of two-center interference in the emission times for H2 and D2. © 2010 The 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: 2010
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 54 52.94%
2 image of flag of China China 14 13.73%
3 image of flag of Spain Spain 7 6.86%
4 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 6 5.88%
5 image of flag of Vietnam Vietnam 4 3.92%
6 image of flag of Russian Federation Russian Federation 4 3.92%
7 image of flag of United States United States 3 2.94%
8 image of flag of United Kingdom United Kingdom 2 1.96%
9 image of flag of Korea, Republic of Korea, Republic of 1 0.98%
10 image of flag of Japan Japan 1 0.98%
    other countries 6 5.88%

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