1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Analytical model for the transition to superradiance in seeded free-electron lasers

MOPB104
2 Jun 2025, 16:00
2h
Exhibiton Hall A _Bear (TWTC)

Exhibiton Hall A _Bear

TWTC

Poster Presentation MC2.A06 Free Electron Lasers (FELs) Monday Poster Session

Speaker

River Robles (Stanford University)

Description

Free-electron lasers (FEL) seeded by short radiation pulses can exhibit superradiant behavior. In the superradiant regime, the pulse simultaneously compresses and amplifies as it propagates through the FEL, making superradiance very promising for pushing the performance limits of attosecond x-ray FELs. To date, this regime has been studied in asymptotic limits, but there is no model for how the initially linear dynamics of the seeded FEL transition into the nonlinear superradiant behavior. We derive an analytical model for the 1D FEL seeded by a short pulse which accurately captures the linear dynamics, the nonlinear superradiant evolution, and the smooth transition between them. Our model fills a critical gap in our understanding of FEL superradiance and nonlinear time-dependent FEL physics more broadly, and may provide a bridge to the corresponding problem in three-dimensions, and analogous problems in other fields exhibiting soliton behavior.

Funding Agency

U.S. DOE, Office of Science, Office of BES under Contract No. DE-AC02-76SF00515
U.S. DOE, Office of Science, Office of BES Accelerator and Detector Research Program

Region represented America
Paper preparation format LaTeX

Author

River Robles (Stanford University)

Co-authors

Agostino Marinelli (SLAC National Accelerator Laboratory) Erik Hemsing (SLAC National Accelerator Laboratory) Gennady Stupakov (xLight Incorporated)

Presentation materials

There are no materials yet.