Electron and Ion Coincidence Momentum Imaging of Multichannel Dissociative Ionization of Ethanol in Intense Laser Fields

  • Ryuji Itakura
  • Kouichi Hosaka
  • Atsushi Yokoyama
  • Tomoya Ikuta
  • Fumihiko Kannari
  • Kaoru Yamanouchi
Part of the Springer Series in Chemical Physics book series (CHEMICAL, volume 109)


We investigate the multichannel dissociative ionization of \({\text {C}}_{2}{\text {H}}_{5}\)OH in intense laser fields by the photoelectron-photoion coincidence momentum imaging and identify separately the ionization and subsequent electronic excitation in \({\text {C}}_{2}{\text {H}}_{5}\)OH. From the energy correlation between a photoelectron and a fragment ion, we reveal the amount of the internal energy gained by \({\text {C}}_{2}{\text {H}}_{5}{\text {OH}}^{+}\) from the laser field varies depending on the respective ionization and electronic excitation pathways. It is found that \({\text {C}}_{2}{\text {H}}_{5}{\text {OH}}^{+}\) prepared in the electronic ground state associated with the moment of the photoelectron emission gains larger internal energy at the end of the laser pulse than that prepared in the electronically excited state at the moment of the photoelectron emission.


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Ryuji Itakura
    • 1
  • Kouichi Hosaka
    • 1
  • Atsushi Yokoyama
    • 1
  • Tomoya Ikuta
    • 1
    • 2
  • Fumihiko Kannari
    • 2
  • Kaoru Yamanouchi
    • 3
  1. 1.Quantum Beam Science Directorate, Kansai Photon Science InstituteJapan Atomic Energy AgencyKyotoJapan
  2. 2.Department of Electronics and Electrical EngineeringKeio UniversityKouhoku-kuJapan
  3. 3.Department of Chemistry, School of ScienceThe University of TokyoTokyoJapan

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