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Dissociative two-photon ionization of N2 in extreme ultraviolet by intense self-amplified spontaneous emission free electron laser light

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11 Author(s)
Sato, T. ; Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo Bunkyo-ku, Tokyo 113-0033, Japan ; Okino, T. ; Yamanouchi, K. ; Yagishita, Akira
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Dissociative multiple ionization processes of N2 were investigated by irradiating N2 with an intense extreme ultraviolet (XUV) light at 50.3 nm generated by a compact self amplified spontaneous emission free electron laser light source. From the analysis of the momentum distribution of N+ ejected through the Coulomb explosion of N2 and by the single-shot correlation between the yields of N2+ and N+, it was confirmed that double ionization of N2 occurred by the two-photon absorption of the XUV light.

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Applied Physics Letters  (Volume:92 ,  Issue: 15 )