Controlling intramolecular hydrogen migration by asymmetric laser fields: the water case

文献情報

出版日 2019-05-09

DOI 10.1039/C9CP01470E

インパクトファクター 3.676

著者

Emmanouil Kechaoglou, Spyridon Kaziannis, Constantine Kosmidis

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要旨

Hydrogen and deuterium intramolecular migration in water's isotopomer dications has been found to depend on the wavelength of the laser used for the excitation. This is imprinted in H2+ and D2+ fragment ions’ observation in the mass spectra induced by single color fs laser irradiation with 800 nm ≤ λ ≤ 1570 nm. Based on these findings, experiments with ω/2ω asymmetric laser fields (1400/700 nm) have been performed. The dissociation channels of the dications exhibit different dependence on the phase between the ω and 2ω components of the field thus offering an ability for controlling the fragmentation. For the interpretation of these observations, a tunneling mechanism is invoked.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 3036

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