%0 Journal Article %T Prolific pair production with high-power lasers %A Bell %A A. R. %A Kirk %A John G. %J High Energy Physics - Phenomenology %D 2008 %I %R 10.1103/PhysRevLett.101.200403 %X 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. %U http://arxiv.org/abs/0808.2107