Author: Soong, K.
Paper Title Page
TUEPPB015 Generation of Narrow-Band Coherent Tunable Terahertz Radiation using a Laser-Modulated Electron Beam 1146
  • M.P. Dunning, C. Hast, E. Hemsing, R.K. Jobe, D.J. McCormick, J. Nelson, T.O. Raubenheimer, K. Soong, Z.M. Szalata, D.R. Walz, S.P. Weathersby, D. Xiang
    SLAC, Menlo Park, California, USA
  Funding: Work supported by US DOE contract DE-AC02-76SF00515.
The technical layout and initial results of an experiment to generate narrow-band, coherent, tunable terahertz (THz) radiation through the down-conversion of the frequency of optical lasers using a laser-modulated electron beam are described. In this experiment a 120 MeV electron beam is first energy modulated by two lasers with different wavelengths. After passing through a dispersive section, the energy modulation is converted into a density modulation at THz frequencies. This density-modulated beam will be used to generate narrow-band THz radiation using a coherent transition radiator inserted into the beam path. The central frequency of the THz radiation can be tuned by varying the wavelength of one of the two lasers or the energy chirp of the electron beam. The experiment is being performed at the NLCTA at SLAC, and will utilize the existing Echo-7 beamline, where echo-enabled harmonic generation (EEHG) was recently demonstrated.
TUYB02 Manufacture and Testing of Optical-scale Accelerator Structures from Silicon and Silica 1050
  • R.J. England, E.R. Colby, R. Laouar, C. McGuinness, B. Montazeri, R.J. Noble, K. Soong, J.E. Spencer, D.R. Walz, Z. Wu
    SLAC, Menlo Park, California, USA
  • R.L. Byer, C.M. Chang, K.J. Leedle, E.A. Peralta
    Stanford University, Stanford, California, USA
  • B.M. Cowan
    Tech-X, Boulder, Colorado, USA
  • M. Qi
    Purdue University, West Lafayette, Indiana, USA
  We report on recent progress in the design, manufacture and testing of optical-scale accelerator structures made from silicon and silica. The potential of these structures for the development of extremely compact, efficient, and low cost accelerators producing attosecond electron pulses will be discussed, together with various possible applications.  
slides icon Slides TUYB02 [17.226 MB]