Determination of ionization and tunneling times in high-order harmonic generation

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Zhao, J.; Lein, M.: Determination of ionization and tunneling times in high-order harmonic generation. In: Physical Review Letters 111 (2013), Nr. 4, 43901. DOI: https://doi.org/10.1103/PhysRevLett.111.043901

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Sum total of downloads: 158




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Abstract: 
From the numerical solution of the time-dependent Schrödinger equation, we obtain the times of ionization and return of the laser-driven electron in high-order harmonic generation by probing the dynamics with a second harmonic field polarized orthogonal to the fundamental field and observing the harmonic emission in dependence on the two-color delay. Our retrieval method using complex-time evolution gives ionization and return times in excellent agreement with the quantum-orbit model, while a retrieval based on real-time classical dynamics can introduce substantial errors. Because of the imaginary parts, the harmonic signal polarized along the probe field is nonzero for any two-color delay. The tunneling time can be retrieved under an assumption for the return time. © 2013 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: 2013
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 96 60.76%
2 image of flag of China China 33 20.89%
3 image of flag of United States United States 14 8.86%
4 image of flag of Romania Romania 2 1.27%
5 image of flag of Morocco Morocco 2 1.27%
6 image of flag of Taiwan Taiwan 1 0.63%
7 image of flag of Portugal Portugal 1 0.63%
8 image of flag of Poland Poland 1 0.63%
9 image of flag of Japan Japan 1 0.63%
10 image of flag of Italy Italy 1 0.63%
    other countries 6 3.80%

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