Enhanced nonlinear double excitation of he in intense extreme ultraviolet laser fields

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

doi:10.1103/PhysRevLett.107.243003

Enhanced nonlinear double excitation of he in intense extreme ultraviolet laser fields

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

^*この論文の責任著者

教養教育学系

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

39 被引用数 (Scopus)

抄録

Nonlinear, three-photon double excitation of He in intense extreme ultraviolet free-electron laser fields (∼24.1eV, ∼5TW/cm,sup>2) is presented. Resonances to the doubly excited states converging to the He ⁺ N=3 level are revealed by the shot-by-shot photoelectron spectroscopy and identified by theoretical calculations based on the time-dependent Schrödinger equation for the two-electron atom under a laser field. It is shown that the three-photon double excitation is enhanced by intermediate Rydberg states below the first ionization threshold, giving a greater contribution to the photoionization yields than the two-photon process by more than 1 order of magnitude.

本文言語	英語
論文番号	243003
ジャーナル	Physical Review Letters
巻	107
号	24
DOI	https://doi.org/10.1103/PhysRevLett.107.243003
出版ステータス	出版済み - 2011/12/06

ASJC Scopus 主題領域

物理学および天文学一般

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10.1103/PhysRevLett.107.243003

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Hishikawa, A., Fushitani, M., Hikosaka, Y., Matsuda, A., Liu, C. N., Morishita, T., Shigemasa, E., Nagasono, M., Tono, K., Togashi, T., Ohashi, H., Kimura, H., Senba, Y., Yabashi, M., & Ishikawa, T. (2011). Enhanced nonlinear double excitation of he in intense extreme ultraviolet laser fields. Physical Review Letters, 107(24), 記事 243003. https://doi.org/10.1103/PhysRevLett.107.243003

@article{5c20d51ed4a045db91589c0a61c56900,

title = "Enhanced nonlinear double excitation of he in intense extreme ultraviolet laser fields",

abstract = "Nonlinear, three-photon double excitation of He in intense extreme ultraviolet free-electron laser fields (∼24.1eV, ∼5TW/cm,sup>2) is presented. Resonances to the doubly excited states converging to the He + N=3 level are revealed by the shot-by-shot photoelectron spectroscopy and identified by theoretical calculations based on the time-dependent Schr{\"o}dinger equation for the two-electron atom under a laser field. It is shown that the three-photon double excitation is enhanced by intermediate Rydberg states below the first ionization threshold, giving a greater contribution to the photoionization yields than the two-photon process by more than 1 order of magnitude.",

author = "A. Hishikawa and M. Fushitani and Y. Hikosaka and A. Matsuda and Liu, {C. N.} and T. Morishita 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 = "2011",

month = dec,

day = "6",

doi = "10.1103/PhysRevLett.107.243003",

language = "英語",

volume = "107",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "24",

}

Hishikawa, A, Fushitani, M, Hikosaka, Y, Matsuda, A, Liu, CN, Morishita, T, Shigemasa, E, Nagasono, M, Tono, K, Togashi, T, Ohashi, H, Kimura, H, Senba, Y, Yabashi, M & Ishikawa, T 2011, 'Enhanced nonlinear double excitation of he in intense extreme ultraviolet laser fields', Physical Review Letters, vol. 107, no. 24, 243003. https://doi.org/10.1103/PhysRevLett.107.243003

TY - JOUR

T1 - Enhanced nonlinear double excitation of he in intense extreme ultraviolet laser fields

AU - Hishikawa, A.

AU - Fushitani, M.

AU - Hikosaka, Y.

AU - Matsuda, A.

AU - Liu, C. N.

AU - Morishita, T.

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 - 2011/12/6

Y1 - 2011/12/6

N2 - Nonlinear, three-photon double excitation of He in intense extreme ultraviolet free-electron laser fields (∼24.1eV, ∼5TW/cm,sup>2) is presented. Resonances to the doubly excited states converging to the He + N=3 level are revealed by the shot-by-shot photoelectron spectroscopy and identified by theoretical calculations based on the time-dependent Schrödinger equation for the two-electron atom under a laser field. It is shown that the three-photon double excitation is enhanced by intermediate Rydberg states below the first ionization threshold, giving a greater contribution to the photoionization yields than the two-photon process by more than 1 order of magnitude.

AB - Nonlinear, three-photon double excitation of He in intense extreme ultraviolet free-electron laser fields (∼24.1eV, ∼5TW/cm,sup>2) is presented. Resonances to the doubly excited states converging to the He + N=3 level are revealed by the shot-by-shot photoelectron spectroscopy and identified by theoretical calculations based on the time-dependent Schrödinger equation for the two-electron atom under a laser field. It is shown that the three-photon double excitation is enhanced by intermediate Rydberg states below the first ionization threshold, giving a greater contribution to the photoionization yields than the two-photon process by more than 1 order of magnitude.

UR - http://www.scopus.com/inward/record.url?scp=83655203020&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.107.243003

DO - 10.1103/PhysRevLett.107.243003

M3 - 学術論文

C2 - 22242995

AN - SCOPUS:83655203020

SN - 0031-9007

VL - 107

JO - Physical Review Letters

JF - Physical Review Letters

IS - 24

M1 - 243003

ER -

Enhanced nonlinear double excitation of he in intense extreme ultraviolet laser fields

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