Dissociative ionization of a large molecule studied by intense phase-controlled laser fields

Hideki Ohmura, Naoaki Saito, Hidehiko Nonaka, Shingo Ichimura

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

We report on the dissociative ionization of a large polyatomic molecule induced by quantum control of tunneling ionization. The directionally asymmetric tunneling ionization induced by phase-controlled two-color (ω+2ω) intense (1.0× 1013 W cm2) laser fields with 130-fs pulses led to selective ionization of oriented molecules, which reflect the geometric nature of the highest occupied molecular orbital. We conclude that in the case of 1-iodohexane the molecular Ammosov-Delone-Krainov model for tunneling ionization is qualitatively valid even for the large polyatomic molecule, and that the nonadiabatic multielectron dynamics, which lead to fragmentation, play a much more important role in molecular cations than in neutral molecules.

Original languageEnglish
Article number053405
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume77
Issue number5
DOIs
Publication statusPublished - 2008 May 15
Externally publishedYes

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ionization
lasers
polyatomic molecules
molecules
molecular orbitals
fragmentation
color
cations
pulses

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Dissociative ionization of a large molecule studied by intense phase-controlled laser fields. / Ohmura, Hideki; Saito, Naoaki; Nonaka, Hidehiko; Ichimura, Shingo.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 77, No. 5, 053405, 15.05.2008.

Research output: Contribution to journalArticle

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