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Persistent URL http://purl.org/net/epubs/work/37277
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Record Id 37277
Title Effect of laser-focusing conditions on propagation and monoenergetic electron production in laser-wakefield accelerators
Abstract The effect of laser-focusing conditions on the evolution of relativistic plasma waves in laser-wakefield accelerators is studied both experimentally and with particle-in-cell simulations. For short focal-length (w0<λp) interactions, beam breakup prevents stable propagation of the pulse. High field gradients lead to nonlocalized phase injection of electrons, and thus broad energy spread beams. However, for long focal-length geometries (w0>λp), a single optical filament can capture the majority of the laser energy and self-guide over distances comparable to the dephasing length, even for these short pulses (cτ≈λp). This allows the wakefield to evolve to the correct shape for the production of the monoenergetic electron bunches, as measured in the experiment
Organisation CCLRC , CLF , CLF-HPL , CLF-ASTRA , CI
Keywords beams , CLF 2006-2007 , plasma , pulse duration
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Language English (EN)
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Journal Article Phys Rev B 98, no. 9 (2007): 095004. doi:10.1103/PhysRevLett.98.095004 2007