Prolific pair production with high-power lasers

Abstract

Prolific electron-positron pair production is possible at laser intensities approaching 10^{24} W/cm^2 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.

4 pages, 1 figure, minor revisions, accepted for publication in Physical Review Letters

References in corpus (2)

• Physics of Strongly Magnetized Neutron Stars
• Light diffraction by a strong standing electromagnetic wave

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