Simulation studies of external seeding schemes for Shanghai soft X-ray free electron laser

Fan Weijie; Feng Chao; Zhao Minghua

doi:10.11884/HPLPB202234.210262

Volume 34 Issue 3

Jan. 2022

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Fan Weijie, Feng Chao, Zhao Minghua. Simulation studies of external seeding schemes for Shanghai soft X-ray free electron laser[J]. High Power Laser and Particle Beams, 2022, 34: 031016. doi: 10.11884/HPLPB202234.210262

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Fan Weijie, Feng Chao, Zhao Minghua. Simulation studies of external seeding schemes for Shanghai soft X-ray free electron laser[J]. High Power Laser and Particle Beams, 2022, 34: 031016. doi: 10.11884/HPLPB202234.210262

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Simulation studies of external seeding schemes for Shanghai soft X-ray free electron laser

doi: 10.11884/HPLPB202234.210262

Fan Weijie^{1, 2
,},
Feng Chao^{3
,
,},
Zhao Minghua¹

1.
Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China

Received Date: 2021-07-08
Rev Recd Date: 2021-11-01

Available Online: 2021-11-15

Publish Date: 2022-01-13

Abstract

Abstract

Shanghai Soft X-ray Free Electron Laser User Facility (SXFEL-UF) is the first X-ray FEL in China that can produce coherent radiation in the water-window regime. The main working modes of SXFEL are self-amplified spontaneous emission and external seeding schemes. This paper mainly focuses on the start to end simulations of the external seeding schemes including echo-enabled harmonic generation-high gain harmonic generation cascade (EEHG-HGHG cascade) and single stage echo-enabled harmonic generation (EEHG). 3D simulations indicates that these external seeding schemes can generate coherent X-ray radiation at soft X-ray regime directly from a conventional UV seed laser.
- free electron laser,
- high gain harmonic generation,
- echo-enabled harmonic generation,
- fully coherent,
- narrow-bandwidth

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References(19)

References

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