Multiphoton double ionization of Ar in intense extreme ultraviolet laser fields studied by shot-by-shot photoelectron spectroscopy

Y. Hikosaka; M. Fushitani; A. Matsuda; C. M. Tseng; A. Hishikawa; E. Shigemasa; M. Nagasono; K. Tono; T. Togashi; H. Ohashi; H. Kimura; Y. Senba; M. Yabashi; T. Ishikawa

doi:10.1103/PhysRevLett.105.133001

Multiphoton double ionization of Ar in intense extreme ultraviolet laser fields studied by shot-by-shot photoelectron spectroscopy

Y. Hikosaka^*, M. Fushitani, A. Matsuda, C. M. Tseng, A. Hishikawa, E. Shigemasa, M. Nagasono, K. Tono, T. Togashi, H. Ohashi, H. Kimura, Y. Senba, M. Yabashi, T. Ishikawa

^*Corresponding author for this work

Faculty of Liberal Arts and Sciences

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

Photoelectron spectroscopy has been performed to study the multiphoton double ionization of Ar in an intense extreme ultraviolet laser field (hν∼21eV, ∼5TW/cm2), by using a free electron laser (FEL). Three distinct peaks identified in the observed photoelectron spectra clearly show that the double ionization proceeds sequentially via the formation of Ar ⁺: Ar+hν→Ar⁺+e^- and Ar ⁺+2hν→Ar2⁺+e^-. Shot-by-shot recording of the photoelectron spectra allows simultaneous monitoring of FEL spectrum and the multiphoton process for each FEL pulse, revealing that the two-photon ionization from Ar⁺ is significantly enhanced by intermediate resonances in Ar⁺.

Original language	English
Article number	133001
Journal	Physical Review Letters
Volume	105
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.105.133001
State	Published - 2010/09/21

ASJC Scopus subject areas

General Physics and Astronomy

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Hikosaka, Y., Fushitani, M., Matsuda, A., Tseng, C. M., Hishikawa, A., Shigemasa, E., Nagasono, M., Tono, K., Togashi, T., Ohashi, H., Kimura, H., Senba, Y., Yabashi, M., & Ishikawa, T. (2010). Multiphoton double ionization of Ar in intense extreme ultraviolet laser fields studied by shot-by-shot photoelectron spectroscopy. Physical Review Letters, 105(13), Article 133001. https://doi.org/10.1103/PhysRevLett.105.133001

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title = "Multiphoton double ionization of Ar in intense extreme ultraviolet laser fields studied by shot-by-shot photoelectron spectroscopy",

abstract = "Photoelectron spectroscopy has been performed to study the multiphoton double ionization of Ar in an intense extreme ultraviolet laser field (hν∼21eV, ∼5TW/cm2), by using a free electron laser (FEL). Three distinct peaks identified in the observed photoelectron spectra clearly show that the double ionization proceeds sequentially via the formation of Ar +: Ar+hν→Ar++e- and Ar ++2hν→Ar2++e-. Shot-by-shot recording of the photoelectron spectra allows simultaneous monitoring of FEL spectrum and the multiphoton process for each FEL pulse, revealing that the two-photon ionization from Ar+ is significantly enhanced by intermediate resonances in Ar+.",

author = "Y. Hikosaka and M. Fushitani and A. Matsuda and Tseng, {C. M.} and A. Hishikawa and E. Shigemasa and M. Nagasono and K. Tono and T. Togashi and H. Ohashi and H. Kimura and Y. Senba and M. Yabashi and T. Ishikawa",

year = "2010",

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day = "21",

doi = "10.1103/PhysRevLett.105.133001",

language = "英語",

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Hikosaka, Y, Fushitani, M, Matsuda, A, Tseng, CM, Hishikawa, A, Shigemasa, E, Nagasono, M, Tono, K, Togashi, T, Ohashi, H, Kimura, H, Senba, Y, Yabashi, M & Ishikawa, T 2010, 'Multiphoton double ionization of Ar in intense extreme ultraviolet laser fields studied by shot-by-shot photoelectron spectroscopy', Physical Review Letters, vol. 105, no. 13, 133001. https://doi.org/10.1103/PhysRevLett.105.133001

TY - JOUR

T1 - Multiphoton double ionization of Ar in intense extreme ultraviolet laser fields studied by shot-by-shot photoelectron spectroscopy

AU - Hikosaka, Y.

AU - Fushitani, M.

AU - Matsuda, A.

AU - Tseng, C. M.

AU - Hishikawa, A.

AU - Shigemasa, E.

AU - Nagasono, M.

AU - Tono, K.

AU - Togashi, T.

AU - Ohashi, H.

AU - Kimura, H.

AU - Senba, Y.

AU - Yabashi, M.

AU - Ishikawa, T.

PY - 2010/9/21

Y1 - 2010/9/21

N2 - Photoelectron spectroscopy has been performed to study the multiphoton double ionization of Ar in an intense extreme ultraviolet laser field (hν∼21eV, ∼5TW/cm2), by using a free electron laser (FEL). Three distinct peaks identified in the observed photoelectron spectra clearly show that the double ionization proceeds sequentially via the formation of Ar +: Ar+hν→Ar++e- and Ar ++2hν→Ar2++e-. Shot-by-shot recording of the photoelectron spectra allows simultaneous monitoring of FEL spectrum and the multiphoton process for each FEL pulse, revealing that the two-photon ionization from Ar+ is significantly enhanced by intermediate resonances in Ar+.

AB - Photoelectron spectroscopy has been performed to study the multiphoton double ionization of Ar in an intense extreme ultraviolet laser field (hν∼21eV, ∼5TW/cm2), by using a free electron laser (FEL). Three distinct peaks identified in the observed photoelectron spectra clearly show that the double ionization proceeds sequentially via the formation of Ar +: Ar+hν→Ar++e- and Ar ++2hν→Ar2++e-. Shot-by-shot recording of the photoelectron spectra allows simultaneous monitoring of FEL spectrum and the multiphoton process for each FEL pulse, revealing that the two-photon ionization from Ar+ is significantly enhanced by intermediate resonances in Ar+.

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U2 - 10.1103/PhysRevLett.105.133001

DO - 10.1103/PhysRevLett.105.133001

M3 - 学術論文

C2 - 21230767

AN - SCOPUS:77957130088

SN - 0031-9007

VL - 105

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 133001

ER -

Multiphoton double ionization of Ar in intense extreme ultraviolet laser fields studied by shot-by-shot photoelectron spectroscopy

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