New stable multiply charged negative atomic ions in linearly polarized superintense laser fields

Qi Wei, Sabre Kais, Nimrod Moiseyev

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Singly charged negative atomic ions exist in the gas phase and are of fundamental importance in atomic and molecular physics. However, theoretical calculations and experimental results clearly exclude the existence of any stable doubly-negatively-charged atomic ion in the gas phase, only one electron can be added to a free atom in the gas phase. In this report, using the high-frequency Floquet theory, we predict that in a linear superintense laser field one can stabilize multiply charged negative atomic ions in the gas phase. We present self-consistent field calculations for the linear superintense laser fields needed to bind extra one and two electrons to form He-, He2-, and Li2-, with detachment energies dependent on the laser intensity and maximal values of 1.2, 0.12, and 0.13 eV, respectively. The fields and frequencies needed for binding extra electrons are within experimental reach. This method of stabilization is general and can be used to predict stability of larger multiply charged negative atomic ions.

Original languageEnglish
Article number201108
JournalJournal of Chemical Physics
Volume124
Issue number20
DOIs
Publication statusPublished - 28 May 2006
Externally publishedYes

Fingerprint

Gases
Ions
vapor phases
Lasers
lasers
Electrons
ions
Molecular physics
Atomic physics
molecular physics
electrons
atomic physics
detachment
self consistent fields
Stabilization
stabilization
Atoms
atoms
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

New stable multiply charged negative atomic ions in linearly polarized superintense laser fields. / Wei, Qi; Kais, Sabre; Moiseyev, Nimrod.

In: Journal of Chemical Physics, Vol. 124, No. 20, 201108, 28.05.2006.

Research output: Contribution to journalArticle

@article{556c0842a7174a679e4d856961100196,
title = "New stable multiply charged negative atomic ions in linearly polarized superintense laser fields",
abstract = "Singly charged negative atomic ions exist in the gas phase and are of fundamental importance in atomic and molecular physics. However, theoretical calculations and experimental results clearly exclude the existence of any stable doubly-negatively-charged atomic ion in the gas phase, only one electron can be added to a free atom in the gas phase. In this report, using the high-frequency Floquet theory, we predict that in a linear superintense laser field one can stabilize multiply charged negative atomic ions in the gas phase. We present self-consistent field calculations for the linear superintense laser fields needed to bind extra one and two electrons to form He-, He2-, and Li2-, with detachment energies dependent on the laser intensity and maximal values of 1.2, 0.12, and 0.13 eV, respectively. The fields and frequencies needed for binding extra electrons are within experimental reach. This method of stabilization is general and can be used to predict stability of larger multiply charged negative atomic ions.",
author = "Qi Wei and Sabre Kais and Nimrod Moiseyev",
year = "2006",
month = "5",
day = "28",
doi = "10.1063/1.2207619",
language = "English",
volume = "124",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "20",

}

TY - JOUR

T1 - New stable multiply charged negative atomic ions in linearly polarized superintense laser fields

AU - Wei, Qi

AU - Kais, Sabre

AU - Moiseyev, Nimrod

PY - 2006/5/28

Y1 - 2006/5/28

N2 - Singly charged negative atomic ions exist in the gas phase and are of fundamental importance in atomic and molecular physics. However, theoretical calculations and experimental results clearly exclude the existence of any stable doubly-negatively-charged atomic ion in the gas phase, only one electron can be added to a free atom in the gas phase. In this report, using the high-frequency Floquet theory, we predict that in a linear superintense laser field one can stabilize multiply charged negative atomic ions in the gas phase. We present self-consistent field calculations for the linear superintense laser fields needed to bind extra one and two electrons to form He-, He2-, and Li2-, with detachment energies dependent on the laser intensity and maximal values of 1.2, 0.12, and 0.13 eV, respectively. The fields and frequencies needed for binding extra electrons are within experimental reach. This method of stabilization is general and can be used to predict stability of larger multiply charged negative atomic ions.

AB - Singly charged negative atomic ions exist in the gas phase and are of fundamental importance in atomic and molecular physics. However, theoretical calculations and experimental results clearly exclude the existence of any stable doubly-negatively-charged atomic ion in the gas phase, only one electron can be added to a free atom in the gas phase. In this report, using the high-frequency Floquet theory, we predict that in a linear superintense laser field one can stabilize multiply charged negative atomic ions in the gas phase. We present self-consistent field calculations for the linear superintense laser fields needed to bind extra one and two electrons to form He-, He2-, and Li2-, with detachment energies dependent on the laser intensity and maximal values of 1.2, 0.12, and 0.13 eV, respectively. The fields and frequencies needed for binding extra electrons are within experimental reach. This method of stabilization is general and can be used to predict stability of larger multiply charged negative atomic ions.

UR - http://www.scopus.com/inward/record.url?scp=34547648321&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547648321&partnerID=8YFLogxK

U2 - 10.1063/1.2207619

DO - 10.1063/1.2207619

M3 - Article

AN - SCOPUS:34547648321

VL - 124

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 20

M1 - 201108

ER -