Second-order autocorrelation of XUV FEL pulses via time resolved two-photon single ionization of He | Zendy

R. Moshammer | Zendy; T. Pfeifer | Zendy; Artem Rudenko | Zendy; Yuhai Jiang | Zendy; L. Foucar | Zendy; М. Курка | Zendy; K. U. Kühnel | Zendy; C. D. Schröter | Zendy; J. Ullrich | Zendy; O Herrwerth | Zendy; Matthias F. Kling | Zendy; Xiaomeng LIU | Zendy; Koji Motomura | Zendy; H. Fukuzawa | Zendy; Akimitsu Yamada | Zendy; K. Ueda | Zendy; Kenichi L. Ishikawa | Zendy; Kiyonobu Nagaya | Zendy; Hiroshi Iwayama | Zendy; A Sugishima | Zendy; Y Mizoguchi | Zendy; S Yase | Zendy; M. Yao | Zendy; Norio Saitô | Zendy; A. Belkacem | Zendy; Mitsuru Nagasono | Zendy; A. Higashiya | Zendy; Makina Yabashi | Zendy; Tetsuya Ishikawa | Zendy; Haruhiko Ohashi | Zendy; Hiroaki Kimura | Zendy; Tadashi Togashi | Zendy

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Second-order autocorrelation of XUV FEL pulses via time resolved two-photon single ionization of He

Author(s) -

R. Moshammer,

T. Pfeifer,

Artem Rudenko,

Yuhai Jiang,

L. Foucar,

М. Курка,

K. U. Kühnel,

C. D. Schröter,

J. Ullrich,

O Herrwerth,

Matthias F. Kling,

Xiaomeng LIU,

Koji Motomura,

H. Fukuzawa,

Akimitsu Yamada,

K. Ueda,

Kenichi L. Ishikawa,

Kiyonobu Nagaya,

Hiroshi Iwayama,

A Sugishima,

Y Mizoguchi,

S Yase,

M. Yao,

Norio Saitô,

A. Belkacem,

Mitsuru Nagasono,

A. Higashiya,

Makina Yabashi,

Tetsuya Ishikawa,

Haruhiko Ohashi,

Hiroaki Kimura,

Tadashi Togashi

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.021698

Subject(s) - physics , optics , autocorrelation , ultrashort pulse , coherence (philosophical gambling strategy) , ionization , pulse duration , coherence time , extreme ultraviolet , photon , pulse (music) , recoil , laser , atomic physics , spectroscopy , momentum (technical analysis) , photon counting , ion , statistics , mathematics , finance , quantum mechanics , detector , economics

Second-order autocorrelation spectra of XUV free-electron laser pulses from the Spring-8 Compact SASE Source (SCSS) have been recorded by time and momentum resolved detection of two-photon single ionization of He at 20.45 eV using a split-mirror delay-stage in combination with high-resolution recoil-ion momentum spectroscopy (COLTRIMS). From the autocorrelation trace we extract a coherence time of 8 ± 2 fs and a mean pulse duration of 28 ± 5 fs, much shorter than estimations based on electron bunch-length measurements. Simulations within the partial coherence model [Opt. Lett. 35, 3441 (2010)] are in agreement with experiment if a pulse-front tilt across the FEL beam diameter is taken into account that leads to a temporal shift of about 6 fs between both pulse replicas.

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