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Laser-driven plasma waves in capillary tubes

Wodja, F. and Vieux, G. and Brunetti, E. and Shanks, Richard P. and Jaroszynski, D.A. and Persson, A. (2009) Laser-driven plasma waves in capillary tubes. Physical Review E, 80. 066403. ISSN 1539-3755

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Abstract

The excitation of plasma waves over a length of up to 8 cm is demonstrated using laser guiding of intense laser pulses through hydrogen-filled glass capillary tubes. The plasma waves are diagnosed by spectral analysis of the transmitted laser radiation. The dependence of the spectral redshift-measured as a function of filling pressure, capillary tube length, and incident laser energy-is in excellent agreement with simulation results. The longitudinal accelerating field inferred from the simulations is in the range of 1-10 GV/m.