SLAC Publication SLAC-PUB-15372
SLAC Release Date: February 7, 2013
Echo-Enabled X-Ray Vortex Generation
Hemsing, Erik.
DOI: 10.1103/PhysRevLett.109.224801

A technique to generate high-brightness electromagnetic vortices with tunable topological charge at extreme ultraviolet and x-ray wavelengths is described. Based on a modified version of echo-enabled harmonic generation for free-electron lasers, the technique uses two lasers and two chicanes to produce high-harmonic microbunching of a relativistic electron beam with a corkscrew distribution tha... Show Full Abstract
DOI: 10.1103/PhysRevLett.109.224801

A technique to generate high-brightness electromagnetic vortices with tunable topological charge at extreme ultraviolet and x-ray wavelengths is described. Based on a modified version of echo-enabled harmonic generation for free-electron lasers, the technique uses two lasers and two chicanes to produce high-harmonic microbunching of a relativistic electron beam with a corkscrew distribution that matches the instantaneous helical phase structure of the x-ray vortex. The strongly correlated electron distribution emerges from an efficient three-dimensional recoherence effect in the echo-enabled harmonic generation transport line and can emit fully coherent vortices in a downstream radiator for access to new research in x-ray science. Show Partial Abstract
Download File:
  • Interest Categories: Accelerator Physics, Synchrotron Radiation, X-Ray Free Electron Laser
Powered by SciDoc

Web Solutions | Archives and History Office | Library