Dimensional scaling treatment of stability of simple diatomic molecules induced by superintense, high-frequency laser fields

Qi Wei, Sabre Kais, Dudley Herschbach

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We present results obtained using dimensional scaling with high-frequency Floquet theory to evaluate the stability of gas phase simple diatomic molecules in superintense laser fields. The large- D limit provides a simple model that captures the main physics of the problem, which imposes electron localization along the polarization direction of the laser field. This localization markedly reduces the ionization probability and can enhance chemical bonding when the laser strength becomes sufficiently strong. We find that energy and structure calculations at the large-dimensional limit (D→∞) for stabilities of H2 +, H2, and He2 in superintense laser fields are much simpler than at D=3, yet yield similar results to those found from demanding ab initio calculations. We also use the large- D model to predict the stability of H2 - and the field strength needed to bind the "extra" electron to the H2 molecule.

Original languageEnglish
Article number214110
JournalJournal of Chemical Physics
Volume129
Issue number21
DOIs
Publication statusPublished - 12 Dec 2008
Externally publishedYes

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diatomic molecules
scaling
Molecules
Lasers
lasers
Electrons
Ionization
field strength
electrons
Physics
Gases
Polarization
vapor phases
ionization
physics
polarization
molecules
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Dimensional scaling treatment of stability of simple diatomic molecules induced by superintense, high-frequency laser fields. / Wei, Qi; Kais, Sabre; Herschbach, Dudley.

In: Journal of Chemical Physics, Vol. 129, No. 21, 214110, 12.12.2008.

Research output: Contribution to journalArticle

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