Magnetic Reconnection and Plasma Dynamics in Two-Beam Laser-Solid Interactions

Department of Physics, Imperial College, London SW7 2AZ, United Kingdom.
Physical Review Letters (Impact Factor: 7.51). 01/2007; 97(25):255001. DOI: 10.1103/PHYSREVLETT.97.255001
Source: PubMed


We present measurements of a magnetic reconnection in a plasma created by two laser beams (1 ns pulse duration, $1\ifmmode\times\else\texttimes\fi{}{10}^{15}\text{ }\text{ }\mathrm{W}\text{ }{\mathrm{cm}}^{$-${}2}$) focused in close proximity on a planar solid target. Simultaneous optical probing and proton grid deflectometry reveal two high velocity, collimated outflowing jets and 0.7\char22{}1.3 MG magnetic fields at the focal spot edges. Thomson scattering measurements from the reconnection layer are consistent with high electron temperatures in this region.

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