Now showing items 34-39 of 39

  • Single-shot longitudinal bunch profile measurements at FLASH using electro-optic detection: experiment, simulation, and validation. 

    Steffen, B.; Knabbe, E-A.; Schlarb, H.; Schmidt, B.; Schmüser, P.; Gillespie, W. A.; Phillips, P. J.; Jamison, S. P.; Berden, G.; van der Meer, A. F. G.; MacLeod, Allan M. (2007)
    At the superconducting linac of FLASH at DESY, we have installed an electro-optic (EO) experiment for single- shot, non-destructive measurements of the longitudinal electric charge distribution of individual electron ...
  • Temporally resolved electro-optic effect 

    Jamison, S. P.; MacLeod, Allan M.; Berden, G.; Jaroszynski, D. A.; Gillespie, W. A. (Optical Society of America, 2006-06)
    The electro-optic effect between an ultrafast optical probe pulse and an ultrashort terahertz pulse is shown to depend on the time derivatives of the product of the probe and the terahertz electric fields. Application of ...
  • Tracking novelty filter using transient enhancement of gratings in photorefractive BSO 

    Soutar, C.; Cartwright, Colin M.; Gillespie, W. A.; Wang, Z. Q. (Elsevier, 1991-11)
    The operation of novelty filtering is demonstrated using a hybrid optical and digital system. Dynamic gratings are written in photorefractive Bi12SiO20 at 514 nm and read out at 633 nm. The transient properties of the ...
  • An ultrashort pulse ultra-violet radiation undulator source driven by a laser plasma wakefield accelerator 

    Anania, M. P.; Brunetti, E.; Wiggins, S. M.; Grant, D. W.; Welsh, G. H.; Issac, R. C.; Cipiccia, S.; Shanks, R. P.; Manahan, G. G.; Aniculaesei, C.; van der Geer, S. B.; de Loos, M. J.; Poole, M. W.; Shepherd, B. J. A.; Clarke, J. A.; Gillespie, W. A.; MacLeod, Allan M.; Jaroszynski, D. A. (American Institute of Physics (AIP), 2014-06-30)
    Narrow band undulator radiation tuneable over the wavelength range of 150–260 nm has been produced by short electron bunches from a 2 mm long laser plasma wakefield accelerator based on a 20 TW femtosecond laser system. ...
  • Upconversion of a relativistic Coulomb field terahertz pulse to the near infrared 

    Jamison, S. P.; Berden, G.; Phillips, P. J.; Gillespie, W. A.; MacLeod, Allan M. (American Institute of Physics, 2010-06-10)
    We demonstrate the spectral upconversion of a unipolar subpicosecond terahertz (THz) pulse, where the THz pulse is the Coulomb field of a single relativistic electron bunch. The upconversion to the optical allows remotely ...
  • Visual perception of light emitting diode light sources 

    Sharpe, R.; Cartwright, Colin M.; Mather, N.; Gillespie, W. A.; Billen, E.; Wall, C.; Taylor, J. A. F. (Japan Science and Technology Agency, 2003)