A bunched electron beam is an efficient source of coherent radiation at wavelengths longer than the bunch length. We describe an experiment demonstrating electron density modulation at 0.8 THz using an optically modulated drive laser to extract a prebunched beam from an RF photoinjector, which is preserved through acceleration to 75 MeV. Measurements of coherent THz transition radiation (CTTR) are presented at the prebunch frequency showing enhanced production over that produced from an unmodulated beam.


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    Title :

    Coherent terahertz radiation from optically pre-bunched electron beams


    Contributors:
    Fiorito, R.B. (author) / Neumann, J. (author) / Freund, H.P. (author) / O'Shea, P.G. (author) / Loos, H. (author) / Sheehy, B. (author) / Carr, G.L. (author) / Graves, W.S. (author)


    Publication date :

    2004-01-01


    Size :

    128215 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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