主要論文

1. R. Bachelard, P. Mercere, M. Idir, M. E. Couprie, M. Labat, O. Chubar, G. Lambert, P. Zeitoun, H. Kimura, H. Ohashi, A. Higashiya, M. Yabashi, M. nagasono, T. Hara and T. Ishikawa.:
   "Wavefront analysis of nonlinear self-amplified spontaneous-emission free-electron laser harmonics in the single-shot regime"
   Phys. Rev. Lett., 106 (2011) 234801.
2. K. Tamasaku, K. Sawada, E. Nishibori and T. Ishikawa.:
   "Visualizing the local optical response to extreme-ultraviolet radaiation with a resolution of λ/380"
   Nature Physics, 7 (2011) 705-708.
3. Y. Takahashi, A. Suzuki, N. Zettsu, Y. Kohmura, K. Yamauchi and T. Ishikawa.:
   "Multiscale element mapping of buried structures by ptychographic x-ray diffraction microscopy using anomalous scattering"
   Appl. Phys. Lett., 99 (2011) 131905
4. M. Nagasono, J. R. Harries, H. Iwayanma, T. Togashi, K. Tono, M. Yabashi, Y. Senba, H. Ohashi, T. Ishikawa and E. Shigemasa.:
   "Observation of free-electron-laser-induced collective spontaneous emission (superfluorescence)"
   Phys. Rev. Lett. 107 (2011) 193603
5. 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 and T. Ishikawa.:
   "Enhanced nonlinear double excitation of He in intense extreme ultraviolet laser fields"
   Phys. Rev. Lett., 107 (2011) 243003-1-5.
6. Y. Nakatsu, A. Sekiyama, S. Imada, Y. Okamoto, S. Niitaka, H. Takagi, A. Higashiya, M. Yabashi, K. Tamasaku, T. Ishikawa and S. Suga.:
   "Hard x-ray photoelectron spectroscopy of the metal-insulator transition in LiRh2O4"
   Phys. Rev. B, 83 (2011) 115120-1-5.
7. K. Tono, T. Kudo, M. Yabashi, T. Tachibana, Y. P. Feng, D. Fritz, J. Hastings and T. Ishikawa.:
   "Single-shot beam-position monitor for x-ray free electron laser"
   Rev. Sci. Instrum. 82 (2011) 023108-1-6.
8. T. Ohtsuki, A. Chainani. R. Eguchi, M. Matsunami, Y. Takata, M. Taguchi, Y. Nishino, K. Tamasaku, M. Yabashi, T. Ishikawa, M. Oura, Y. Senba, H. Ohashi and S. Shin.:
   "Role of Ti 3d carriers in mediating the ferromagnetism of Co:TiO2 anatase thin films"
   Phys. Rev. Lett. 106 (2011) 047602-1-4.
9. T. Togashi, EJ. Takahashi, K. Midorikawa, M. Aoyama, K. Yamakawa, T. Sato, A. Iwasaki, S. Owada, T. Okino, K. Yamanouchi, F. Kannari, A. Yagishita, H. Nakano, M. E. Couprie, K. Fukami, T. Hatsui, T. Hara, T. Kameshima, H. Kitamura, T. Shintake, K. Tamasaku, H. Tanaka, T. Tanaka, K. Togawa, H. Tomizawa, T. Watanabe, M. Yabashi and T. Ishikawa.:
   "Extreme ultraviolet free electron laser seeded with high-order harmonic of Ti:sapphire laser"
   Opt. Exp. 19 (2011) 317-324.
10. N. Miyauchi, J. Adaqchi, A. Yagishita, T. Sako, F. Koike, T. Sato, A. Iwasaki, T. Okino, K. Yamanouchi, K. Midorikawa, K. Yamakawa, F. Kannari, H. Nakano, A. Nagasono, K. Tono, M. Yabashi, T. Ishikaawa, T. Togashi, H. Ohashi, H. Kimura and Y. Senba.:
    "Three-photon double ionization of Ar studied by photoelectron spectroscopy using an extreme ultraviolet free-electron laser: manifestation of resonance states of an intermediate Ar+ ion"
    J. Pys. B, 44 (2011) 071001-1-7.

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