Parametric study of a high amplitude electromagnetic pulse driven by an intense laser

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    An investigation of the electromagnetic (EM) pulse produced by high intensity laser-solid interactions has been carried out by employing the proton probing technique. Laser parameters including energy, pulse duration, and intensity were varied to investigate the influence on the EM pulse amplitude. The data reveal that the amplitude of the EM pulse depends on the incident laser energy and the pulse duration. The optimum pulse length for a given laser energy is found to be close to 100 fs. The net charge associated with the traveling EM pulse has been found to be dependent on the laser intensity, in a good agreement with a semiempirical model. The understanding of the EM pulse is important for the postacceleration of laser driven proton beams.



    Original languageEnglish
    Article number070701
    Number of pages5
    JournalPhysics of Plasmas
    Journal publication date10 Jul 2019
    Issue number7
    Publication statusPublished - 10 Jul 2019

    ID: 175763118