X-ray pulse generation with ultra-fast flipping of its orbital angular momentum

Morgan, J. and McNeil, B. W. J. (2022) X-ray pulse generation with ultra-fast flipping of its orbital angular momentum. Optics Express, 30 (17). pp. 31171-31181. ISSN 1094-4087 (https://doi.org/10.1364/OE.470503)

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Abstract

A method to temporally tailor the properties of X-ray radiation carrying Orbital Angular Momentum (OAM) is presented. In simulations, an electron beam is prepared with a temporally modulated micro-bunching structure which, when radiating at the second harmonic in a helical undulator, generates OAM light with a corresponding temporally modulated intensity. This method is shown to generate attosecond pulse trains of OAM light without the need for any additional external optics, making the wavelength range tunable. In addition to the OAM pulse train, the method can be adapted to generate radiation where the handedness of the OAM mode may also be temporally modulated (flipped).

  • Item type:Article
    ID code:81821
    Dates:
    Date
    Event
    10 August 2022
    Published
    14 July 2022
    Accepted
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:11 Aug 2022 09:35
    Last modified:09 Apr 2024 03:23
    URI:https://strathprints.strath.ac.uk/id/eprint/81821
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