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The interaction of a thin plasma foil with two counterpropagating circularly polarised Laguerre – Gaussian laser beams of ultra-high intensity is studied using pwarticle-in-cell simulations in a fully three-dimensional geometry.… Click to show full abstract
The interaction of a thin plasma foil with two counterpropagating circularly polarised Laguerre – Gaussian laser beams of ultra-high intensity is studied using pwarticle-in-cell simulations in a fully three-dimensional geometry. It is found that within the course of the interaction, bunched electron packets are generated from the plasma target. Each packet has a duration of about 830 attoseconds, and adjacent bunches are spatially separated by one laser wavelength. The emitted electron packets move at ultrarelativistic velocities along the axis of laser propagation.
Journal Title: Quantum Electronics
Year Published: 2017
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