Centers & Labs

RIKEN SPring-8 Center

Beam Line Development Team

Team Leader: Makina Yabashi (D.Eng.)
Makina  Yabashi(D.Eng.)

Based on the state-of-the-art technologies of x-ray optics, the Beam Line Development Team are constructing optical systems for enhancing unique abilities of SACLA, and developing optical diagnosis system for precise measurement of beam properties. We try to generate extremely intense x-ray pulses far beyond 1020 Wcm-2 and develop x-ray diagnostics systems in time domain from femto- to atto-seconds. By combining these elemental technologies, we are pioneering new experimental schemes and methods for developing ultrafast x-ray science and x-ray quantum optics.

Research Subjects

  • Ultrabrilliant X-ray Optics
  • Femto- and atto-second X-ray Optics
  • XFEL Spectroscopy
  • XFEL Seeding Technologies
  • X-ray Quantum Optics

Research Subjects

  • Ultrabrilliant X-ray Optics
  • Femto- and atto-second X-ray Optics
  • XFEL Spectroscopy
  • XFEL Seeding Technologies
  • X-ray Quantum Optics

Selected Publications

  1. T. Katayama, Y. Inubushi, Y. Obara, T. Sato, T. Togashi, K. Tono, T. Hatsui, T. Kameshima, A. Bhattacharya, Y. Ogi, N. Kurahashi, K. Misawa, T. Suzuki and M. Yabashi,
    "Femtosecond x-ray absorption spectroscopy with hard x-ray free electron laser"
    Appl. Phys. Lett. Vol. 103, pp. 131105 (2013)
  2. K Tono, T Togashi, Y Inubushi, T Sato, T Katayama, K Ogawa, H Ohashi, H Kimura, S Takahashi, K Takeshita, H Tomizawa, S Goto, T Ishikawa and M Yabashi,
    "Beamline, experimental stations and photon beam diagnostics for the hard x-ray free electron laser of SACLA"
    New J. Phys. Vol. 12, pp. 083035 (2013)
  3. H. Yumoto, H. Mimura, T. Koyama, S. Matsuyama, K. Tono, T. Togashi, Y. Inubushi, T. Sato, T. Tanaka, T. Kimura, H. Yokoyama, J. Kim, Y. Sano, Y. Hachisu, M. Yabashi, H. Ohashi, T. Ishikawa, K. Yamauchi,
    "Focusing of X-ray free-electron laser pulses with reflective optics"
    Nature Photonics Vol. 7, pp. 43-47 (2013)
  4. Y. Inubushi, K. Tono, T. Togashi, T. Sato, T. Hatsui, T. Kameshima, K. Togawa, T. Hara, T. Tanaka, H. Tanaka, T. Ishikawa, M. Yabashi,
    "Determination of the Pulse Duration of an X-Ray Free Electron Laser Using Highly Resolved Single-Shot Spectra"
    Phys. Rev. Lett. Vol. 109, pp. 144801 (2012)
  5. M. Kato, T. Tanaka, T. Kurosawa, N. Saito, M. Richter, A.A. Sorokin, K. Tiedtke, T. Kudo, K. Tono, M. Yabashi, T. Ishikawa,
    "Pulse energy measurement at the hard x-ray laser in Japan"
    Appl. Phys. Lett. Vol. 101, pp. 023503 (2012)
  6. T. Ishikawa, H. Aoyagi, T. Asaka, Y. Asano, N. Azumi, T. Bizen, H. Ego, K. Fukami, T. Fukui, Y. Furukawa, S. Goto, H. Hanaki, T. Hara, T. Hasegawa, T. Hatsui, A. Higashiya, T. Hirono, N. Hosoda, M. Ishii, T. Inagaki, Y. Inubushi, T. Itoga, Y. Joti, M. Kago, T. Kameshima, H. Kimura, Y. Kirihara, A. Kiyomichi, T. Kobayashi, C. Kondo, T. Kudo, H. Maesaka, X.-M. Maréchal, T. Masuda, S. Matsubara, T. Matsumoto, T. Matsushita, S. Matsui, M. Nagasono, N. Nariyama, H. Ohashi, T. Ohata, T. Ohshima, S. Ono, Y. Otake, C. Saji, T. Sakurai, T. Sato, K. Sawada, T. Seike, K. Shirasawa, T. Sugimoto, S. Suzuki, S. Takahashi, H. Takebe, K. Takeshita, K. Tamasaku, H. Tanaka, R. Tanaka, T. Tanaka, T. Togashi, K. Togawa, A. Tokuhisa, H. Tomizawa, K. Tono, S. Wu, M. Yabashi, M. Yamaga, A. Yamashita, K. Yanagida, C. Zhang, T. Shintake, H. Kitamura, and N. Kumagai,
    "A compact X-ray free-electron laser emitting in the sub-ångström region"
    Nature Photonics Vol. 6, pp. 540-544 (2012)
  7. T. Togashi, E. J. 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, N. Kumagai, S. Matsubara, M. Nagasono, H. Ohashi, T. Ohshima, Y. Otake, 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. Vol. 19, pp. 317-324 (2011)
  8. T. Shintake, H. Tanaka, T. Hara, T. Tanaka, K. Togawa, M. Yabashi, Y. Otake, Y. Asano, T. Bizen, T. Fukui, S. Goto, A. Higashiya, T. Hirono, N. Hosoda, T. Inagaki, S. Inoue, M. Ishii, Y. Kim, H. Kimura , M. Kitamura, T. Kobayashi, H. Maesaka, T. Masuda, S. Matsui, T. Matsushita, X. Marechal, M. Nagasono, H. Ohashi, T. Ohata, T. Ohshima, K. Onoe, K. Shirasawa, T. Takagi, S. Takahashi, M. Takeuchi, K. Tamasaku, R. Tanaka, Y. Tanaka, T. Tanikawa, T. Togashi, S. Wu, A. Yamashita, K. Yanagida K, C. Zhang, H. Kitamura, and T. Ishikawa,
    "A compact free-electron laser for generating coherent radiation in the extreme ultraviolet region"
    Nature Photonics Vol. 2, pp. 555-559 (2008)