Open AccessGenerating coherent and ultrashort X‐ray pulses via HHG‐seeding in storage rings
Author(s) -
Lu Yujie,
Feng Chao,
Tu Lingjun,
Li Changliang,
Jiang Bocheng,
Wang Dong
Publication year - 2022
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577521013382
Subject(s) - storage ring , physics , femtosecond , optics , synchrotron radiation , brightness , high harmonic generation , ultrashort pulse , photon , wavelength , dispersion (optics) , pulse (music) , synchrotron , diffraction , atomic physics , laser , beam (structure) , detector
The generation of fully coherent and femtosecond time‐scale radiation pulses in the X‐ray regime is one of the most common demands of ring‐based synchrotron light source users. In this paper, a method that utilizes the recent proposed angular dispersion induced microbunching technique to convert external light from high‐harmonic generation (HHG) to coherent light at shorter wavelength is proposed. Numerical simulations using the practical parameters of a diffraction‐limited storage ring demonstrate the generation of coherent pulse trains with photon energy as high as 2 keV, pulse duration as short as ∼10 fs and high peak brightness directly from an HHG source at 13 nm.