Prolific pair production with high-power lasers
Abstract
Prolific electron-positron pair production is possible at laser intensities approaching 1024 W/cm2 at a wavelength of 1 micron. An analysis of electron trajectories and interactions at the nodes (B=0) of two counter-propagating, circularly polarised laser beams shows that a cascade of gamma-rays and pairs develops. The geometry is generalised qualitatively to linear polarisation and laser beams incident on a solid target.
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