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Ochi, Yoshihiro; Hasegawa, Noboru; Kawachi, Tetsuya; Terakawa, Kota*; Suemoto, Toru*; Tomita, Takuro*; Yamamoto, Minoru*; Deki, Manato*; Tanaka, Momoko; Nishikino, Masaharu; et al.
no journal, ,
We have developed a chirped pulse amplification laser with zigzag slab Nd:glass power amplifiers which provides two synchronized beams with energy of 
10 J and duration of a few ps at 0.1-Hz repetition-rate. Using this laser as a driver, fully spatial coherent X-ray laser at a wavelength of 13.9 nm is generated at 0.1 Hz. Typical energy, beam divergence and duration of the X-ray laser are 1 
J, 0.5 mrad and 7 ps, respectively. Hence, a quite high peak brilliance is achieved. Using this X-ray laser, various application researches have been started.
Suzuki, Masayuki; Kiriyama, Hiromitsu; Daito, Izuru; Okada, Hajime; Nakai, Yoshiki; Orimo, Satoshi; Sato, Masatoshi*; Tamaoki, Yoshinori*; Yoshii, Takehiro*; Maeda, Junya*; et al.
no journal, ,
We have reported the demonstration of an optical parametric chirped-pulse amplification (OPCPA) operating at 1030 nm. A total OPCPA output energy of 6.5 mJ (uncompressed) with gain exceeding of 10
has been achieved with a spectral bandwidth of 10.8 nm and a recompressed pulse duration of 230 fs. This novel system is a promising alternative to the RA as a nonlinear preamplifier for compact, high intensity, Yb:YAG CPA laser using DPPSL systems.