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

doi:10.1016/j.cplett.2017.01.043

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

Division of Developmental Research in Education Programs

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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 language	English
Pages (from-to)	7-12
Number of pages	6
Journal	Chemical Physics Letters
Volume	672
DOIs	https://doi.org/10.1016/j.cplett.2017.01.043
Publication status	Published - 2017

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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

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.",

author = "Shinichi Fukahori and Motoyoshi Nakano and Kaoru Yamanouchi and Ryuji Itakura",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.cplett.2017.01.043",

language = "English",

volume = "672",

pages = "7--12",

journal = "Chemical Physics Letters",

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T1 - Channel-specific photoelectron angular distribution in laboratory and molecular frames for dissociative ionization of methanol in intense ultraviolet laser fields

AU - Fukahori, Shinichi

AU - Nakano, Motoyoshi

AU - Yamanouchi, Kaoru

AU - Itakura, Ryuji

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

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DO - 10.1016/j.cplett.2017.01.043

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SN - 0009-2614

VL - 672

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EP - 12

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

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

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