Author: Piot, P.
Paper Title Page
WEPD19 Design of a Proof-of-principle Experiment Toward the Generation of Coherent Optical Radiation using a 4-MeV Electron Beam 413
 
  • Y.-E. Sun
    Fermilab, Batavia, USA
  • W.S. Graves
    MIT, Cambridge, Massachusetts, USA
  • D. Mihalcea, H. Panuganti, P. Piot
    Northern Illinois University, DeKalb, Illinois, USA
 
  Transverse-to-longitudinal phase space exchange techniques have open new possibilities toward shaping the temporal distribution of electron bunches. Recently, the combination of such exchange methods with structured, e.g. field-emission, cathodes was suggested as the backbone of compact coherent short-wavelength sources [W. S. Graves, {\em et al.}, ArXiv:1202.0318 (2012)]. In this paper, we present the design and numerical investigation of a proof-of-principle experiment to produce coherent optical transition radiation using a ~4-MeV electron bunch. The optically-modulated bunch is produced from a structured cathode combined with a transverse-to-longitudinal phase space exchanger. The current status of the experiment are also summarized.
This work was supported by DOE grants DE-AC02-07CH11359, DE-FG02-08ER41532, and DARPA grant N66001-11-1-4192.