2016
DOI: 10.1016/j.cpc.2016.06.015
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Photoelectron spectra with Qprop and t-SURFF

Abstract: Calculating strong-field, momentum-resolved photoelectron spectra (PES) from numerical solutions of the time-dependent Schr\"odinger equation (TDSE) is a very demanding task due to the large spatial excursions and drifts of electrons in intense laser fields. The time-dependent surface flux (t-SURFF) method for the calculation of PES [L. Tao, A. Scrinzi, New Journal of Physics 14, 013021 (2012)] allows to keep the numerical grid much smaller than the space over which the wavefunction would be spread at the end … Show more

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Cited by 78 publications
(84 citation statements)
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“…1(c), one can see that the angle dependences and variation ranges of ATI and SB peaks are well coincident. We also calculate the photoelectron momentum distributions by the ab initio method with numerically solving time-dependent Schrödinger equation (TDSE) [20]. The calculation by the SFA shows the similar distribution with the result by the TDSE method (see SM), suggesting that the SFA is a good approximation for current experimental condition.…”
mentioning
confidence: 54%
“…1(c), one can see that the angle dependences and variation ranges of ATI and SB peaks are well coincident. We also calculate the photoelectron momentum distributions by the ab initio method with numerically solving time-dependent Schrödinger equation (TDSE) [20]. The calculation by the SFA shows the similar distribution with the result by the TDSE method (see SM), suggesting that the SFA is a good approximation for current experimental condition.…”
mentioning
confidence: 54%
“…Expanding on the work of Cormier et al [18], we present an analytical model that predicts and explains these stripe-like structures as quantum interference of electrons from adjacent ATI peaks. To further confirm the validity of our model, the 3D TDSE is solved for sodium atoms [19]. Both theoretical models are then compared to measurements and good agreement is found between all three.…”
Section: Introductionmentioning
confidence: 78%
“…For comparison of the experimental results with a more complete theoretical model, we solved the threedimensional TDSE, using the freely available code Qprop, to obtain CEP-dependent photoelectron spectra in the emission direction considered in the analytical model. The algorithm is described in detail elsewhere [19,23]. Here, we briefly summarize the main concepts.…”
Section: Time-dependent Schrödinger Equationmentioning
confidence: 99%
“…Even in the single-active-electron approximation (see, e.g., Refs. [8,[11][12][13]), numerical simulations are feasible only in limited ranges of the laser parameters. For example, numerical simulations of the nonlinear interactions in the very important regime of intense mid-infrared (MIR) fields, e.g., for wavelengths μm, are numerically extremely challenging, especially in the case when the polarization of the laser pulse is not linear.…”
Section: Introductionmentioning
confidence: 99%