FEL2026 - 42nd International Free Electron Laser Conference

Session

FEL Oscillators and Infrared FEL (Invited)

TUZ

25 Aug 2026, 14:00

155. Lasing of a Cavity Based X-ray Source (TUZ01)

Maurizio Vannoni (European X-Ray Free-Electron Laser)

25/08/2026, 14:00

Session 6: FEL Oscillators and Infrared FEL (IR-FEL)

Invited Oral Presentation

Classical optical lasers provide intense, coherent light in the visible and infrared regions, but extending this concept to X-rays has been particularly challenging due to a lack of suitable gain media and mirrors. Current hard X-ray free-electron laser (XFEL) facilities overcome this difficulty using a relativistic high-peak-current electron bunch as gain media for a self-amplified...

19. Continuous THz Band Coverage through Precise Electron Beam Tailoring in Free-electron Lasers (TUZ02)

Kaiqing Zhang (Shanghai Synchrotron Radiation Facility)

25/08/2026, 14:30

Session 6: FEL Oscillators and Infrared FEL (IR-FEL)

Invited Oral Presentation

High-power, continuously tunable narrowband terahertz (THz) sources are essential for advancing nonlinear optics, THz-driven material dynamics, and ultrafast spectroscopy. Conventional techniques typically impose a trade-off between pulse energy and frequency tunability. Here, we demonstrate a novel free-electron laser approach that overcomes these limitations by pre-modulating a relativistic...