QED effects induced harmonics generation in extreme intense laser foil interaction

Yu, J Y and Yuan, T and Liu, W Y and Chen, M and Luo, W and Weng, S M and Sheng, Z M (2018) QED effects induced harmonics generation in extreme intense laser foil interaction. Plasma Physics and Controlled Fusion, 60 (4). 044011. ISSN 0741-3335 (https://doi.org/10.1088/1361-6587/aaae35)

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Abstract

A new mechanism of harmonics generation (HG) induced by quantum electrodynamics (QED) effects in extreme intense laser foil interaction is found and investigated by particle-in-cell (PIC) simulations. When two laser pulses with identical intensities of 1.6 × 1024 W cm-2 are counterincident on a thin foil target, harmonics emission is observed in their reflected electromagnetic waves. Such harmonics radiation is excited due to transversely oscillating electric currents coming from the vibration of QED effect generated e-e+ pairs. The effects of laser intensity and polarization were studied. By distinguishing the cascade depth of generated photons and pairs, the influence of QED cascades on HG was analyzed. Although the current HG is not an efficient way for radiation source applications, it may provide a unique way to detect the QED processes in the near future ultra-relativistic laser solid interactions.

ORCID iDs

Yu, J Y, Yuan, T, Liu, W Y, Chen, M, Luo, W, Weng, S M and Sheng, Z M ORCID logoORCID: https://orcid.org/0000-0002-8823-9993;
  • Item type:Article
    ID code:63940
    Dates:
    Date
    Event
    30 April 2018
    Published
    28 February 2018
    Published Online
    9 February 2018
    Accepted
    Keywords:laser plasma interaction, PIC simulation, QED plasma, Plasma physics. Ionized gases, Nuclear Energy and Engineering, Condensed Matter Physics
    Subjects:Science > Physics > Plasma physics. Ionized gases
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:04 May 2018 13:45
    Last modified:02 Feb 2022 01:37
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/63940
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