Temporal evolution of electron-bunch length in macropulse of resonator-type free-electron lasers by Norihiro Sei, Heishun Zen, Hideaki Ohgaki, Ryoichi Hajima

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Relationship between Ce3+ 5d1 level, conduction-band bottom, and shallow electron trap level in Gd3Ga5O12:Ce and Gd3Al1Ga4O12:Ce crystals studied via pump-probe absorption spectros... by Mamoru Kitaura, Heishun Zen, Shinta Watanabe, Hirokazu Masai, Kei Kamada, Kyoung-Jin Kim, Akira Yoshikawa, Jumpei Ueda

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Infrared Free-Electron Laser: A Versatile Molecular Cutter for Analyzing Solid-State Biomacromolecules by Takayasu Kawasaki, Atsushi Nagase, Ken Hayakawa, Fumitsuna Teshima, Kiyohisa Tanaka, Heishun Zen, Fumio Shishikura, Norihiro Sei, Takeshi Sakai, Yasushi Hayakawa

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