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Title: Angular dispersion enhanced prebunch for seeding ultrashort and coherent EUV and soft X-ray free-electron laser in storage rings

Journal Article · · Journal of Synchrotron Radiation (Online)
ORCiD logo [1];  [2];  [2];  [3];  [4];  [3];  [5];  [2]
  1. Chinese Academy of Sciences (CAS), Shanghai (China). Shanghai Inst. of Applied Physics; Chinese Academy of Sciences (CAS), Beijing (China)
  2. Chinese Academy of Sciences (CAS), Shanghai (China). Shanghai Inst. of Applied Physics
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  4. Huazhong Univ. of Science and Technology, Wuhan (China)
  5. Univ. of Science and Technology of China, Hefei (China)
+ Show Author Affiliations

Prebunching is an effective technique to reduce the radiation saturation length and to improve the longitudinal coherence and output stability in storage-ring-based free-electron lasers (FELs). A novel technique is introduced which uses angular dispersion to enhance the high-harmonic bunching with very small laser-enabled energy spread. This technique can effectively reduce the radiation saturation length without significantly reducing the peak power of the FEL. Numerical simulations reveal that this technique can be used for the generation of 100 MW scale level, fully temporal coherent femtosecond extreme-ultraviolet and soft X-ray radiation pulses through a 10 m-long undulator based on a diffraction-limited storage ring.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
China Scholarship Council (CSC); National Key Research and Development Program of China; National Nature Science Foundation of China (NSFC); USDOE
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1529377
Journal Information:
Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Journal Issue: 3 Vol. 26; ISSN 1600-5775; ISSN JSYRES
Publisher:
International Union of CrystallographyCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
angular dispersion
extreme-ultraviolet (EUV)
free-electron lasers
high-harmonic bunching
prebunching
radiation saturation length
storage rings
ultrashort