Self-seeded FEL wavelength extension with high-gain harmonic generation. (September 2016)

• Record Type: Journal Article
• Authors: Zeng 曾, Ling 凌; Qin 秦, Weilun 伟伦; Zhao 赵, Gang 刚; Huang 黄, Senlin 森林; Ding, Yuantao; Huang, Zhirong; Marcus, Gabriel; Liu 刘, Kexin 克新
• Is Part Of: Chinese physics C. Volume 40:Number 9(2016:Sep.)
• Publication Date: 2016-09
• Subjects: 41.60.Cr -- 41.75.Ht -- 42.65.Ky; FEL -- self-seeding -- HGHG; Particles (Nuclear physics) -- Periodicals; Nuclear physics -- Periodicals; 539.76
• DOI: 10.1088/1674-1137/40/9/098102
• Languages: English
• ISSNs: 1674-1137

Abstract

Abstract: We study a self-seeded high-gain harmonic generation (HGHG) free-electron laser (FEL) scheme to extend the wavelength of a soft X-ray FEL. This scheme uses a regular self-seeding monochromator to generate a seed laser at the wavelength of 1.52 nm, followed by a HGHG configuration to produce coherent, narrow-bandwidth harmonic radiations at the GW level. The 2nd and 3rd harmonic radiation is investigated with start-to-end simulations. Detailed studies of the FEL performance and shot-to-shot fluctuations are presented.