Dissociative ionization of ethanol in chirped intense laser fields

Ryuji Itakura, Kaoru Yamanouchi, Takasumi Tanabe, Tatsuyoshi Okamoto, Fumihiko Kannari

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

The chemical bond breaking processes of ethanol C2H5OH in an intense laser field were investigated by choosing the linear chirp rate of the laser field as only one control parameter. Emphasis was on how the competition between the C-C bond breaking and the C-O bond breaking is affected by the chirp rate of the intense laser field. From the dependences of the yields of the molecular fragment ions such as C2H4OH+, CH2OH+, C2H5+, OH+, and CH3+, on the linear chirp rate, the temporal evolution of the nuclear wave packet at the singly charged stage was elucidated. The observed skeletal bond breaking processes were interpreted well in terms of holding time during which the light-dressed potential energy surface (LDPES) is maintained to guide the wave packet flow either towards the C-C bond elongation or towards the C-O bond elongation.

Original languageEnglish
Pages (from-to)4179-4186
Number of pages8
JournalJournal of Chemical Physics
Volume119
Issue number8
DOIs
Publication statusPublished - 2003 Aug 22

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chirp
Ionization
Wave packets
ethyl alcohol
Ethanol
ionization
wave packets
elongation
Lasers
Elongation
lasers
Potential energy surfaces
Chemical bonds
chemical bonds
potential energy
fragments
Ions
ions

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Dissociative ionization of ethanol in chirped intense laser fields. / Itakura, Ryuji; Yamanouchi, Kaoru; Tanabe, Takasumi; Okamoto, Tatsuyoshi; Kannari, Fumihiko.

In: Journal of Chemical Physics, Vol. 119, No. 8, 22.08.2003, p. 4179-4186.

Research output: Contribution to journalArticle

Itakura, Ryuji ; Yamanouchi, Kaoru ; Tanabe, Takasumi ; Okamoto, Tatsuyoshi ; Kannari, Fumihiko. / Dissociative ionization of ethanol in chirped intense laser fields. In: Journal of Chemical Physics. 2003 ; Vol. 119, No. 8. pp. 4179-4186.
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