Unified description of low-order above-threshold ionization on and off axis

24th International Laser Physics Workshop

Becker, W.^1 ; Miloevi, D.B.^1,2,3

Max-Born-Institut, Max-Born-Str. 2a, Berlin

12489, Germany^1

Faculty of Science, University of Sarajevo, Zmaja od Bosne 35, Sarajevo

71000, Bosnia and Herzegovina^2

Academy of Sciences and Arts of Bosnia and Herzegovina, Bistrik 7, Sarajevo

71000, Bosnia and Herzegovina^3

关键词: Above-threshold ionization;    Electron energies;    Laser polarization;    Low order;    Low-frequency approximation;    Quantum orbits;    Rescattering;    Unified description;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/691/1/012002/pdf
DOI  :  10.1088/1742-6596/691/1/012002

来源: IOP

【 摘 要 】

A recently developed unified description of low-order above-threshold ionization (Becker et al 2014 J. Phys. B: At. Mol. Opt. Phys. 47 204022; 2015 J. Phys. B: At. Mol. Opt. Phys. 48 151001) is revisited and extended. By considering the rescattering electron energies and angles at the classical cutoffs and the contributions of particular quantum-orbit solutions, it is shown that summing both the backward- and the forward-scattering contributions, within the low-frequency approximation, it is possible to reproduce the observed features of the ATI spectra both for low and high energies and both on and off the laser-polarization axis in the momentum plane.