4 papers
The Generation of Variable Polarization States in Terawatt X-Ray Free-Electron Lasers
Henry P. Freund, Patrick G. O'Shea
Terawatt x-ray free-electron lasers (XFELs) represent the frontier in further development of x-ray sources and require high current densities with strong transverse focusing. In th…
Superpower E-Beam Sources and Performance Estimates for Compact THz FELs
Richard B. True, Henry P. Freund, Michael V. Fazio +1
High peak and average power free-electron lasers (FELs) in the terahertz region (THz) require small diameter, low-emittance, and high voltage electron beams. This paper presents tw…
Harmonic Generation in a Terawatt X-Ray Free-Electron Laser
Henry P. Freund, Patrick G. O'Shea
Terawatt x-ray free-electron lasers (XFELs) require high current densities with strong transverse focusing. The implications on harmonic generation are discussed using the MINERVA…
Free electron laser in magnetically dominated regime: simulations with ONEDFEL code
Maxim Lyutikov, Henry Freund
Using the ONEDFEL code we perform Free Electron Laser simulations in the astrophysically important guide-field dominated regime. For wigglers' (Alfven waves) wavelengths of tens of…