Channel-specific photoelectron angular distribution in laboratory and molecular frames for dissociative ionization of methanol in intense ultraviolet laser fields

Shinichi Fukahori, Motoyoshi Nakano, Kaoru Yamanouchi, Ryuji Itakura

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We investigate dissociative ionization of CH3OH in an intense laser field (398 nm, 76 fs, 8.9 × 1012W/cm2) by photoelectron-photoion coincidence momentum imaging. It is revealed from the analysis of the channel-specific photoelectron angular distributions that CH3OH is decomposed into CH2OH++ H after the four-photon ionization to the vibrationally highly excited states of the electronic ground state of CH3OH+and into CH3 ++ OH after the five-photon ionization to the second electronically excited state of CH3OH+, and that these two channels are also opened after CH3OH+, prepared by the four-photon ionization, is photoexcited further into the electronically excited states.

Original languageEnglish
Pages (from-to)7-12
Number of pages6
JournalChemical Physics Letters
Volume672
DOIs
Publication statusPublished - 2017

ASJC Scopus subject areas

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

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