Journal ArticleDOI
A simple non-perturbative approach of atom ionisation by intense and ultra-short laser pulses
Reads0
Chats0
TLDR
Nisoli et al. as mentioned in this paper proposed a non-perturbative approach based on Coulomb-Volkov states to predict ionisation of atoms by intense laser pulses in cases where the effective interaction time does not exceed one or two optical cycles.Abstract:
A simple theoretical approach based on Coulomb-Volkov states is introduced to predict ionisation of atoms by intense laser pulses in cases where the effective interaction time does not exceed one or two optical cycles [M. Nisoli et al., Opt. Lett. 22, 522 (1997)]. Under these conditions, the energy distributions of ejected electrons predicted by this non-perturbative approach are in very good agreement with “exact" results obtained by a full numerical treatment. The agreement is all the better that the principal quantum number of the initial state is high. For very strong fields, most electrons are ejected at an energy which is close to the classical kinetic energy that would be transferred to free electrons by the electromagnetic field during the pulse. The power of the present approach appears when keV. In this region, full numerical treatments become very lengthy and finally do not converge. However, the present Coulomb-Volkov theory still makes reliable predictions in very short computer times.read more
Citations
More filters
Journal ArticleDOI
Applications of B-splines in atomic and molecular physics
TL;DR: In this article, the main properties of B-spline basis sets and why they are useful to solve different problems in atomic and molecular physics are discussed and an extensive reference list of theoretical works that have made use of them up to 2000 is provided.
Book ChapterDOI
Scattering and reaction processes in powerful laser fields
TL;DR: In this article, an overview on various scattering and reaction processes taking place in a powerful laser field can be found, which can be either laser-induced or laser-assisted, in the case of molecules, the additional freedoms of motion lead in the presence of a laser field to a variety of more complicated effects.
Journal ArticleDOI
Coulomb-Volkov approximation for near-threshold ionization by short laser pulses
Diego G. Arbó,Jorge Esteban Miraglia,Maria Silvia Gravielle,K. Schiessl,Emil Persson,Joachim Burgdörfer +5 more
TL;DR: In this paper, the Coulomb-Volkov distorted wave approximation was used to reproduce the near-threshold structures in the angle-resolved photoelectron spectrum, the cusp in the transverse electron momentum distribution, and the forward-backward asymmetry.
Journal ArticleDOI
Coulomb singularity in the transverse momentum distribution for strong-field single ionization
Artem Rudenko,K. Zrost,Th. Ergler,Alexander Voitkiv,Bennaceur Najjari,V. L. B. de Jesus,Bernold Feuerstein,C. D. Schröter,R. Moshammer,Joachim Ullrich +9 more
TL;DR: In this article, high-resolution momentum distributions of ions and electrons created in single ionization of He, Ne and Ar targets by intense (0.15-2 PW cm−2) short-pulsed (25 fs) linearly polarized laser fields in the direction perpendicular to the polarization were presented.
Journal ArticleDOI
It is all about phases: ultrafast holographic photoelectron imaging
TL;DR: In this article, an organizational effort towards unifying the literature on photoelectron holography is presented. And a broad discussion of the theoretical methods employed, and of the key challenges and future possibilities are discussed.
References
More filters