23–28 Aug 2026
America/Los_Angeles timezone

Coherent Undulator Radiation Seeding of High-Gain Harmonic Generation

TUB01
25 Aug 2026, 11:20
16m
Contributed Oral Presentation Session 5: Seeded FEL Seeded FEL (Contributed)

Speaker

Jenny Morgan (SLAC National Accelerator Laboratory)

Description

We propose and simulate a scheme for generating coherent short-wavelength radiation exploiting the intrinsic coherence of emission from a compressed, high-current electron beam. When the bunch length is shorter than the resonant wavelength, the undulator radiation is temporally coherent. This radiation is extracted and optically refocused onto a second, longer electron beam, acting as a coherent seed which drives a large energy modulation. A dispersive section converts this modulation into microbunching, enabling harmonic upconversion to shorter wavelengths via high-gain harmonic generation.

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Author

Jenny Morgan (SLAC National Accelerator Laboratory)

Co-authors

Agostino Marinelli (SLAC National Accelerator Laboratory) Arnav Swaroop (SLAC National Accelerator Laboratory)

Presentation materials

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