Luminous, relativistic, directional electron bunches from an intense laser driven grating plasma

Lad, Amit D. and Mishima, Y. and Singh, Prashant Kumar and Li, Boyuan and Adak, Amitava and Chatterjee, Gourab and Brijesh, P. and Dalui, Malay and Inoue, M. and Jha, J. and Tata, Sheroy and Trivikram, M. and Krishnamurthy, M. and Chen, Min and Sheng, Z. M. and Tanaka, K. A. and Kumar, G. Ravindra and Habara, H. (2022) Luminous, relativistic, directional electron bunches from an intense laser driven grating plasma. Scientific Reports, 12 (1). 16818. ISSN 2045-2322 (https://doi.org/10.1038/s41598-022-21210-7)

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Abstract

Bright, energetic, and directional electron bunches are generated through efficient energy transfer of relativistic intense (~ 1019 W/cm2), 30 femtosecond, 800 nm high contrast laser pulses to grating targets (500 lines/mm and 1000 lines/mm), under surface plasmon resonance (SPR) conditions. Bi-directional relativistic electron bunches (at 40° and 150°) are observed exiting from the 500 lines/mm grating target at the SPR conditions. The surface plasmon excited grating target enhances the electron flux and temperature by factor of 6.0 and 3.6, respectively, compared to that of the plane substrate. Particle-in-Cell simulations indicate that fast electrons are emitted in different directions at different stages of the laser interaction, which are related to the resultant surface magnetic field evolution. This study suggests that the SPR mechanism can be used to generate multiple, bright, ultrafast relativistic electron bunches for a variety of applications.

  • Item type:Article
    ID code:82655
    Dates:
    Date
    Event
    7 October 2022
    Published
    23 September 2022
    Accepted
    31 August 2021
    Submitted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:11 Oct 2022 09:16
    Last modified:26 Jul 2024 01:29
    URI:https://strathprints.strath.ac.uk/id/eprint/82655
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