212 citations · 476 across the 10 of their papers we have counts for
10 papers
Attosecond Delays in X-ray Molecular Ionization
Taran Driver, Miles Mountney, Jun Wang +34
The photoelectric effect is not truly instantaneous, but exhibits attosecond delays that can reveal complex molecular dynamics. Sub-femtosecond duration light pulses provide the re…
Extraction of higher-order nonlinear electronic response to strong field excitation in solids using high harmonic generation
Seunghwoi Han, Lisa Ortmann, Hyunwoong Kim +9
State-of-the-art experiments employ strong ultrafast optical fields to study the nonlinear response of electrons in solids on an attosecond time-scale. Notably, a recent experiment…
Symphony on Strong Field Approximation
Kasra Amini, Jens Biegert, Francesca Calegari +22
This paper has been prepared by the Symphony collaboration (University of Warsaw, Uniwersytet Jagielloński, DESY/CNR and ICFO) on the occasion of the 25th anniversary of the "simpl…
Controlling quantum numbers and light emission of Rydberg states via the laser pulse duration
L. Ortmann, C. Hofmann, I. A. Ivanov +1
High Harmonic Generation (HHG) creates coherent high frequency radiation via the process of strong field ionization followed by recombination. Recently, a complementary approach ba…
Intensity dependence of Rydberg states
L. Ortmann, C. Hofmann, A. S. Landsman
We investigate numerically and analytically the intensity dependence of the fraction of electrons that end up in a Rydberg state after strong-field ionization with linearly polariz…
Instantaneous ionization rate as a functional derivative
I. A. Ivanov, C. Hofmann, L. Ortmann +3
We describe an approach defining instantaneous ionization rate (IIR) as a functional derivative of the total ionization probability. The definition is based on physical quantities…