Multiphoton-double-ionization probability linearly depends on laser intensity: Experimental studies of barium
Atomic Physics
2013-08-13 v2 Atomic and Molecular Clusters
Abstract
Despite inherently complex multiphoton dynamics, our observations show that Ba double ionization with an infrared laser (8800-8920 cm^{-1}) resembles a single-photon process; namely, its probability is proportional to the laser intensity. In this regime, single-electron ionization is due to a four-photon resonant transition through the highly perturbed state 6p^2 1D_2, whereas double ionization is realized by the two-electron mechanism. Furthermore, we argue that these conclusions are valid for other alkaline-earth-metal atoms and other parameters of laser radiation.
Keywords
Cite
@article{arxiv.1306.1550,
title = {Multiphoton-double-ionization probability linearly depends on laser intensity: Experimental studies of barium},
author = {I. I. Bondar and V. V. Suran and D. I. Bondar},
journal= {arXiv preprint arXiv:1306.1550},
year = {2013}
}
Comments
7 pages and 7 figures