Laser-accelerated protons with energy-dependent beam direction

Lindau, F. and Lundh, O. and Persson, A. and McKenna, P. and Osvay, K. and Batani, D. and Wahlström, Claes-Göran (2005) Laser-accelerated protons with energy-dependent beam direction. Physical Review Letters, 95 (17). pp. 175002-1. ISSN 0031-9007

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Abstract

The spatial distribution of protons, accelerated by intense femtosecond laser pulses interacting with thin target foils under oblique irradiation are investigated. Under certain conditions, the proton beams are directed away from the target normal. This deviation is towards the laser forward direction, with an angle that increases with the level and duration of the amplified spontaneous emission pedestal before the main laser pulse. In addition, for a given laser pulse, this beam deviation increases with proton energy. The observations are discussed in terms of different electron acceleration mechanisms and target normal sheath acceleration, in combination with a laser-controllable shock wave locally deforming the target rear surface.

ORCID iDs

Lindau, F., Lundh, O., Persson, A., McKenna, P. ORCID logoORCID: https://orcid.org/0000-0001-8061-7091, Osvay, K., Batani, D. and Wahlström, Claes-Göran;
  • Item type:Article
    ID code:3049
    Dates:
    Date
    Event
    October 2005
    Published
    Keywords:protons, lasers, laser pulse, Plasma physics. Ionized gases, Physics and Astronomy(all)
    Subjects:Science > Physics > Plasma physics. Ionized gases
    Department:Faculty of Science > Physics
    Depositing user: Mr Derek Boyle
    Date deposited:27 Mar 2007
    Last modified:10 Sep 2021 03:15
    URI:https://strathprints.strath.ac.uk/id/eprint/3049
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