FEL2022

Two Color Upgrade of the IR FEL at FHI Berlin

MOP23

22 Aug 2022, 16:00

1h 30m

Exhibition Hall (Trieste Convention Centre)

Contributed Poster FEL oscillators & IR-FEL Monday posters

Speakers

Wieland Schöllkopf (Fritz-Haber-Institut der Max-Planck-Gesellschaft) Marco De Pas (Fritz-Haber-Institut der Max-Planck-Gesellschaft) Heinz Junkes (Fritz-Haber-Institut der Max-Planck-Gesellschaft) Gert von Helden (Fritz-Haber-Institut der Max-Planck-Gesellschaft) William Colson (Naval Postgraduate School) David Dowell (SLAC National Accelerator Laboratory) Stephen Gottschalk (STI Magnetics LLC) John Rathke (Advanced Energy Systems) Tom Schultheiss (TJS Technologies) Alan Todd (AMMTodd Consulting) Lloyd Young (LMY Technology) Sandy Gewinner (Fritz-Haber-Institut der Max-Planck-Gesellschaft) Gerard Meijer (Fritz-Haber-Institut der Max-Planck-Gesellschaft)

Description

Since coming on-line in November 2013, the Fritz-Haber-Institut (FHI) der Max-Planck-Gesellschaft (MPG) Free-Electron Laser (FEL) has provided intense, tunable infrared radiation to FHI user groups. It has enabled experiments in diverse fields ranging from bio-molecular spectroscopy to studies of clusters and nanoparticles, nonlinear solid-state spectroscopy, and surface science, resulting in 85 peer-reviewed publications so far. A significant upgrade of the FHI FEL is now nearing completion. A second short Rayleigh range undulator FEL beamline has been added that will permit lasing from < 5 microns to > 160 microns in the far IR. Additionally, a 500 MHz kicker cavity has been installed. It will permit simultaneous two-color operation of the FEL from both FEL beamlines over an optical range of 5 to 50 microns by deflecting alternate 1 GHz pulses into each of the two undulators. We will describe the upgraded FHI FEL physics and engineering design and present the current status of commissioning.