title: 10-MHz, Yb-fiber chirped-pulse amplifier system with large-scale transmission gratings.
abstract: Large-scale transmission gratings were produced for a stretcher and a compressor in the Yb-fiber chirped-pulse amplification system. A 23-W, 200-fs laser system with a 10-MHz repetition rate was demonstrated. Focused intensity as high as 10(14) W/cm(2) was achieved, which is high enough for multi-photon processes such as high-order harmonics generation and multi-photon ionization of neutral atoms. High-order harmonics up to 7th order were observed using Xe gas as a nonlinear medium.
authors.affiliation: The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581, Japan. yohei@issp.u-tokyo.ac.jp
authors.forename: Yohei
authors.initials: Y
authors.lastname: Kobayashi
authors.forename: Nozomi
authors.initials: N
authors.lastname: Hirayama
authors.forename: Akira
authors.initials: A
authors.lastname: Ozawa
authors.forename: Takashi
authors.initials: T
authors.lastname: Sukegawa
authors.forename: Takashi
authors.initials: T
authors.lastname: Seki
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kuramoto
authors.forename: Shuntaro
authors.initials: S
authors.lastname: Watanabe
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation*; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D015018:Ytterbium