Double optical gating of high order harmonics from plasma surfaces

Rachel Elizabeth Smith, Elgiva White, Paul M Gilmore, Brendan Dromey, Mark Yeung

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Laser driven high harmonic generation from relativistically driven plasma surfaces is a promising route to isolated attosecond pulses with high peak brightness. Here we investigate a double optical gating scheme to restrict the emission to only a single, intense, attosecond pulse even with a multi-cycle driving laser. This scheme, which uses a second harmonic field, combined with a pair of counter-rotating circularly polarized laser pulses, leads to more efficient attosecond pulse generation with improved temporal isolation when compared to a single colour polarization gating scheme.
Original languageEnglish
Article number093010
JournalNew Journal of Physics
Issue number9
Early online date23 Aug 2021
Publication statusPublished - 08 Sept 2021


  • Paper
  • attosecond
  • high harmonic generation
  • laser–plasma interaction


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