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6 / 2025-02-08 18:37:13
Isolated Attosecond electron and γ-Ray Pulse Generation Using Intense Spatiotemporal Optical Vortex Lasers
electron accelration,γ-Ray,vortex laser
Fundamental physics at extremes
Abstract Accepted
WangWenpeng / Chinese Academy of Sciences；Shanghai Institute of Optics and Fine Mechanics
Isolated attosecond γ-ray pulses are valuable for probing ultrafast phenomena, particularly in nuclear research. Traditional Gaussian lasers achieve this in the direct acceleration mechanisms but suffer from beam divergence and require dual laser systems, limiting compactness. Here, we demonstrate the generation of an isolated attosecond γ-ray pulse with transverse orbital angular momentum (TOAM) using a circularly polarized spatiotemporal optical vortex (STOV) laser in three-dimensional particle-in-cell simulations. An isolated attosecond electron slice accelerated by the STOV laser (~1022 W/cm2) collides with its reflected front, producing an isolated attosecond collimated (~4°), ultra-brilliant (~5×10²⁴ photons/s/mm²/mrad²/0.1% BW) γ-ray pulse. This STOV-driven mechanism enables single-laser attosecond γ-ray generation with TOAM, offering new opportunities in ultrafast imaging, nuclear excitation, and detection.
Important Date

  • Conference Date

    May 12

    2025

    to

    May 15

    2025

  • Mar 26 2025

    Draft paper submission deadline

  • Apr 30 2025

    Early Bird Registration

  • May 15 2025

    Registration deadline

Sponsored By
Institute of Applied Physics and Computational Mathematics, Beijing, China
Shaanxi Normal University, Xi’an, China
Organized By
陕西师范大学
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