Gao CZ, Dinh PM, Reinhard PG, Suraud E (2017)
Publication Type: Journal article
Publication year: 2017
Book Volume: 19
Pages Range: 19784-19793
Journal Issue: 30
DOI: 10.1039/c7cp00995j
We study from a theoretical perspective the ionization of molecules and clusters induced by irradiation of a combined two-color laser field consisting of a train of attosecond XUV pulses in the presence of an IR field. We use time-dependent density-functional theory (TDDFT) in real time and real space as a theoretical tool. The calculated results are compared to experimental data when available. We also compare TDDFT with results obtained using a time-dependent Schrödinger equation (TDSE), which is well suited to simple systems while TDDFT allows dealing with more complex molecules and clusters. As a key observable, we study ionization versus delay time of the XUV pulses with respect to the IR background pulse. Experiments in simple atoms (He and Ar) show a regular modulation of this signal with half the IR period. This feature is recovered by TDDFT as well as by the TDSE (although total ionization differs by an order of magnitude). As more complex systems, we consider a C
APA:
Gao, C.Z., Dinh, P.M., Reinhard, P.-G., & Suraud, E. (2017). Towards the analysis of attosecond dynamics in complex systems. Physical Chemistry Chemical Physics, 19(30), 19784-19793. https://doi.org/10.1039/c7cp00995j
MLA:
Gao, C. Z., et al. "Towards the analysis of attosecond dynamics in complex systems." Physical Chemistry Chemical Physics 19.30 (2017): 19784-19793.
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