iSURF: a family of infinite-time surface flux methods

The computation and analysis of photoelectron spectra (PES) is a fundamental technique in atomic and molecular physics to study the structural and dynamical properties of a target system, and to gain insight into the process of its ionization. Since the first numerical solutions of the time-dependen...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2016-11, Vol.49 (24), p.245001
Main Authors: Morales, F, Bredtmann, T, Patchkovskii, S
Format: Article
Language:English
Subjects:
above threshold ionization
atomic physics
ionization
photoelectron spectra
time dependent Schrdinger equation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The computation and analysis of photoelectron spectra (PES) is a fundamental technique in atomic and molecular physics to study the structural and dynamical properties of a target system, and to gain insight into the process of its ionization. Since the first numerical solutions of the time-dependent Schrödinger equation (TDSE), numerous methods have been developed to extract PES from the calculated wave functions. However, most of these methods have severe limitations or are computationally very demanding. Here we present a new family of methods, based on the ideas of the so-called analytical Volkov continuation, or time-dependent surface flux (Ermolaev et al 1999 Phys. Rev. A 60 483145; Ermolaev and Selin 2000 Phys. Rev. A 62 015401; Tao and Scrinzi 2012 New J. Phys. 14 013021), that allows one to obtain fully-converged PES at the end of the laser pulse using either Volkov states or the exact scattering-states, and that has been implemented in the TDSE solver (Patchkovskii and Muller 2016 Comput. Phys. Commun. 199 153-69).
ISSN:0953-4075
1361-6455
DOI:10.1088/0953-4075/49/24/245001