title: Generation of 5 fs, 0.5 TW pulses focusable to relativistic intensities at 1 kHz.
abstract: We have demonstrated the generation of 5 fs, 0.5 TW pulses at 1 kHz repetition rate using a pulse compression technique in a hollow fiber with a pressure gradient. Owing to the excellent beam quality by passing through the hollow fiber, the beam after pulse compression could be focused to a nearly diffraction-limited spot size. We obtained for the first time a peak intensity as high as 5x10(18) W/cm(2) in the 2-cycle regime.
authors.affiliation: RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan.
authors.forename: Samuel
authors.initials: S
authors.lastname: Bohman
authors.forename: Akira
authors.initials: A
authors.lastname: Suda
authors.forename: Masanori
authors.initials: M
authors.lastname: Kaku
authors.forename: Muhammad
authors.initials: M
authors.lastname: Nurhuda
authors.forename: Takuya
authors.initials: T
authors.lastname: Kanai
authors.forename: Shigeru
authors.initials: S
authors.lastname: Yamaguchi
authors.forename: Katsumi
authors.initials: K
authors.lastname: Midorikawa