Isolated Attosecond Pulse Generation by Direct Optimization of Two-Color Laser Fields Using the Genetic Algorithm

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2012/08/01

タイトル(英語): Isolated Attosecond Pulse Generation by Direct Optimization of Two-Color Laser Fields Using the Genetic Algorithm

著者名: Kenichi L. Ishikawa (Photon Science Center, Graduate School of Engineering, The University of Tokyo), Shaobo Fang (Center for Free-Electron Laser Science, DESY), Takashi Tanigawa (Department of Applied Physics, Hokkaido University), Naoki Karasawa (Depart

著者名(英語): Kenichi L. Ishikawa (Photon Science Center, Graduate School of Engineering, The University of Tokyo), Shaobo Fang (Center for Free-Electron Laser Science, DESY), Takashi Tanigawa (Department of Applied Physics, Hokkaido University), Naoki Karasawa (Department of Opt-Electronic System Engineering, Chitose Institute of Science and Technology), Mikio Yamashita (Department of Applied Physics, Hokkaido University)

キーワード: high-harmonic generation，isolated attosecond pulse generation，genetic algorithm

要約(英語): We propose a method to optimize two-color laser fields, composed of an intense driving pulse at 580 nm and a weaker control pulse at 1160 nm, for isolated attosecond pulse generation. We use genetic algorithm (GA) to optimize laser parameters including the group-delay dispersion and the third-order dispersion of the control pulse. The fitness function is constructed by directly using the duration of the generated high-harmonic extreme ultraviolet (XUV) pulse. Our simulation results show that the isolated attosecond pulse can be significantly shortened without much affecting its spectral width.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.132 No.8 （2012） 特集：光・量子ビームによるナノダイナミクス

本誌掲載ページ: 1278-1282 p

原稿種別: 論文／英語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/132/8/132_1278/_article/-char/ja/