Determination of the absolute two-photon ionization cross section of He by an XUV free electron laser

Takahiro Sato; Atsushi Iwasaki; Kazuki Ishibashi; Tomoya Okino; Kaoru Yamanouchi; Junichi Adachi; Akira Yagishita; Hiroki Yazawa; Fumihiko Kannari; Makoto Aoyma; Koichi Yamakawa; Katsumi Midorikawa; Hidetoshi Nakano; Makina Yabashi; Mitsuru Nagasono; Atsushi Higashiya; Tetsuya Ishikawa

doi:10.1088/0953-4075/44/16/161001

Determination of the absolute two-photon ionization cross section of He by an XUV free electron laser

Takahiro Sato, Atsushi Iwasaki, Kazuki Ishibashi, Tomoya Okino, Kaoru Yamanouchi, Junichi Adachi, Akira Yagishita, Hiroki Yazawa, Fumihiko Kannari, Makoto Aoyma, Koichi Yamakawa, Katsumi Midorikawa, Hidetoshi Nakano, Makina Yabashi, Mitsuru Nagasono, Atsushi Higashiya, Tetsuya Ishikawa

Department of Electronics and Electrical Engineering

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

37 Citations (Scopus)

Abstract

The resonant and non-resonant two-photon single ionization processes of He were investigated using intense free electron laser light in the extreme ultraviolet (XUV) region (53.4-61.4 nm) covering the 1s-2p and 1s-3p resonant transitions of He. On the basis of the dependences of the yield of He ⁺ on the XUV light-field intensity at 53.4, 58.4, 56.0 and 61.4 nm, the absolute values of the two-photon ionization cross sections of He at the four different wavelengths and their dependence on the light-field intensity were determined for the first time.

Original language	English
Article number	161001
Journal	Journal of Physics B: Atomic, Molecular and Optical Physics
Volume	44
Issue number	16
DOIs	https://doi.org/10.1088/0953-4075/44/16/161001
Publication status	Published - 2011 Aug 28

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics

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Sato, T., Iwasaki, A., Ishibashi, K., Okino, T., Yamanouchi, K., Adachi, J., Yagishita, A., Yazawa, H., Kannari, F., Aoyma, M., Yamakawa, K., Midorikawa, K., Nakano, H., Yabashi, M., Nagasono, M., Higashiya, A., & Ishikawa, T. (2011). Determination of the absolute two-photon ionization cross section of He by an XUV free electron laser. Journal of Physics B: Atomic, Molecular and Optical Physics, 44(16), [161001]. https://doi.org/10.1088/0953-4075/44/16/161001

Sato, T, Iwasaki, A, Ishibashi, K, Okino, T, Yamanouchi, K, Adachi, J, Yagishita, A, Yazawa, H, Kannari, F, Aoyma, M, Yamakawa, K, Midorikawa, K, Nakano, H, Yabashi, M, Nagasono, M, Higashiya, A & Ishikawa, T 2011, 'Determination of the absolute two-photon ionization cross section of He by an XUV free electron laser', Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 44, no. 16, 161001. https://doi.org/10.1088/0953-4075/44/16/161001

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abstract = "The resonant and non-resonant two-photon single ionization processes of He were investigated using intense free electron laser light in the extreme ultraviolet (XUV) region (53.4-61.4 nm) covering the 1s-2p and 1s-3p resonant transitions of He. On the basis of the dependences of the yield of He + on the XUV light-field intensity at 53.4, 58.4, 56.0 and 61.4 nm, the absolute values of the two-photon ionization cross sections of He at the four different wavelengths and their dependence on the light-field intensity were determined for the first time.",

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AU - Sato, Takahiro

AU - Iwasaki, Atsushi

AU - Ishibashi, Kazuki

AU - Okino, Tomoya

AU - Yamanouchi, Kaoru

AU - Adachi, Junichi

AU - Yagishita, Akira

AU - Yazawa, Hiroki

AU - Kannari, Fumihiko

AU - Aoyma, Makoto

AU - Yamakawa, Koichi

AU - Midorikawa, Katsumi

AU - Nakano, Hidetoshi

AU - Yabashi, Makina

AU - Nagasono, Mitsuru

AU - Higashiya, Atsushi

AU - Ishikawa, Tetsuya

PY - 2011/8/28

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N2 - The resonant and non-resonant two-photon single ionization processes of He were investigated using intense free electron laser light in the extreme ultraviolet (XUV) region (53.4-61.4 nm) covering the 1s-2p and 1s-3p resonant transitions of He. On the basis of the dependences of the yield of He + on the XUV light-field intensity at 53.4, 58.4, 56.0 and 61.4 nm, the absolute values of the two-photon ionization cross sections of He at the four different wavelengths and their dependence on the light-field intensity were determined for the first time.

AB - The resonant and non-resonant two-photon single ionization processes of He were investigated using intense free electron laser light in the extreme ultraviolet (XUV) region (53.4-61.4 nm) covering the 1s-2p and 1s-3p resonant transitions of He. On the basis of the dependences of the yield of He + on the XUV light-field intensity at 53.4, 58.4, 56.0 and 61.4 nm, the absolute values of the two-photon ionization cross sections of He at the four different wavelengths and their dependence on the light-field intensity were determined for the first time.

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Determination of the absolute two-photon ionization cross section of He by an XUV free electron laser

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