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Controlling the Orbital Alignment in Atoms Using Cross-Circularly Polarized Extreme Ultraviolet Wave Packets.
Kaneyasu, T; Hikosaka, Y; Fujimoto, M; Iwayama, H; Katoh, M.
Afiliación
  • Kaneyasu T; SAGA Light Source, Tosu 841-0005, Japan.
  • Hikosaka Y; Institute for Molecular Science, Okazaki 444-8585, Japan.
  • Fujimoto M; Institute of Liberal Arts and Sciences, University of Toyama, Toyama 930-0194, Japan.
  • Iwayama H; Institute for Molecular Science, Okazaki 444-8585, Japan.
  • Katoh M; Sokendai (The Graduate University for Advanced Studies), Okazaki 444-8585, Japan.
Phys Rev Lett ; 123(23): 233401, 2019 Dec 06.
Article en En | MEDLINE | ID: mdl-31868498
We report on the use of pairs of 10-cycle extreme ultraviolet wave packets with attosecond-controlled spacing emitted by individual relativistic electrons within an electron bunch passing through a tandem undulator. Based on the temporal coherent control technique with circular polarization, we succeeded in controlling the excited state alignment in the photoexcitation of helium atoms, which we verified through the observation of oscillation in fluorescence yield depending on the attosecond-controlled delay time. Our work demonstrates the potential of undulator radiation for the generation of longitudinally coherent wave packets suitable for attosecond coherent control, an application which has hitherto been hidden in the incoherent nature of the radiation pulse emitted by a bunch of electrons.

Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2019 Tipo del documento: Article País de afiliación: Japón

Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2019 Tipo del documento: Article País de afiliación: Japón