Deformation of an inner valence molecular orbital in ethanol by an intense laser field

  title={Deformation of an inner valence molecular orbital in ethanol by an intense laser field},
  author={Hiroshi Akagi and Tomohito Otobe and Ryuji Itakura},
  journal={Science Advances},
Orbital deformation on a suboptical cycle time scale is revealed by orientation dependence of tunnel ionization. Valence molecular orbitals play a crucial role in chemical reactions. Here, we reveal that an intense laser field deforms an inner valence orbital (10a′) in the ethanol molecule. We measure the recoil-frame photoelectron angular distribution (RFPAD), which corresponds to the orientation dependence of the ionization probability of the orbital, using photoelectron-photoion coincidence… 
13 Citations

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Macroscopic electron-hole distribution in silicon and cubic silicon carbide by the intense femtosecond laser pulse

  • T. Otobe
  • Physics
    Journal of Applied Physics
  • 2019
Electron excitations at silicon and 3C-SiC surfaces caused by an intense femtosecond laser pulse can be calculated by solving the time-dependent density functional theory and the Maxwell's equation

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The advantages of DFT in atomic and electronic structures for understanding electro-catalysis and the design of catalysts fused with DFT calculations promises rapid advances in the coming years.

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Molecules irradiated with intense laser pulses (field intensity ~1015 W/cm2) exhibit a variety of characteristic processes, such as tunneling ionization, electron rescattering, high-order harmonics...



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Laser Tunnel Ionization from Multiple Orbitals in HCl

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The measured angular distributions and intensity dependence show that field-dressed orbitals can have strong Rydberg character for certain orientations of the molecule relative to the laser polarization and that they may contribute significantly to the hydrogen elimination dissociative ionization yield.

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