17–22 May 2026
C.I.D
Europe/Zurich timezone

Theoretical Analysis of a Novel Seeded Free-Electron Laser Scheme with the Same Layout as EEHG

TUP2639
19 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC2.A06: Free Electron Lasers (FELs) Poster session

Speaker

Zhouyu Zhao (University of Science and Technology of China)

Description

Seeded free-electron lasers (FELs) are advanced, accelerator-based light sources characterized by high coherence and stability. In our previous research, we proposed an intelligent optimization framework for studying the micro-bunching process in seeded FELs. Using this framework for exploratory optimization, we identified a novel seeded FEL scheme. This scheme employs an optical layout identical to echo-enabled harmonic generation (EEHG), but by adjusting the parameters of the seed lasers and chicanes, it achieves bunching factors exceeding the theoretical limit of conventional EEHG. In this paper, using a representative set of realistic beam parameters, we demonstrate how this novel scheme induces a high harmonic density modulation in the electron beam. Then, we theoretically analyze this novel seeded FEL, presenting its underlying principles.

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Author

Zihan Wang (University of Science and Technology of China)

Co-authors

Guangyao Feng (University of Science and Technology of China) Qika Jia (University of Science and Technology of China) Yuejing Huang (University of Science and Technology of China) Zhenghe Bai (University of Science and Technology of China) Zhouyu Zhao (University of Science and Technology of China)

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