Media type: Text; E-Article Title: Emission times in high-order harmonic generation Contributor: Chirilä, C.C. [Author]; Dreissigacker, Ingo [Author]; van der Zwan, Elmar V. [Author]; Lein, Manfred [Author] Published: College Park, MD : American Physical Society, 2010 Published in: Physical Review A 81 (2010), Nr. 3 Issue: published Version Language: English DOI: https://doi.org/10.15488/1976; https://doi.org/10.1103/PhysRevA.81.033412 Keywords: Harmonic generation ; Experimental observation ; Numerical data ; Nuclear motions ; Complex trajectories ; Dinger equation ; Binding potential ; Three dimensions ; Lewenstein model ; Gabor transform ; Harmonic analysis ; High order harmonic generation ; Time-dependent ; Quantum orbits ; Equations of motion ; Two-center interference ; Molecular systems Origination: Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen. Description: 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. Access State: Open Access