Dispersion managenet by using assist pulse compression for the laser acceleration research

Mori, Michiaki; Kiriyama, Hiromitsu; Miyasaka, Yasuhiro; Kishimoto, Maki; Kotaki, Hideyuki; Hayashi, Yukio; Kando, Masaki; Kondo, Kiminori

Improvement of controllability and stability at laser-driven particle beams are important for multi-purpose applications. Improvement of the laser stability is important to improvement such parameters. Especially, compensation of higher order dispersion at a CPA laser system influences stability of laser temporal profile. In this work, we demonstrate new concept of higher order dispersion management by using assist pulse compression. We confirmed 1e-7 prepulse level at sub-ns region and 120 dB/ps slew rate at sub-ps region.