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Plasma-aided radiation guiding in a free-electron laser

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4 Author(s)
R. N. Agarwal ; Dept. of Phys., Indian Inst. of Technol., New Delhi, India ; Ghanshyam ; V. K. Tripathi ; P. C. Agarwal

The introduction of a plasma in a free-electron laser (FEL) helps radiation guiding via nonlinear refraction. At high-radiation power density, when oscillatory electron velocity is comparable to the electron thermal velocity, the radiation pushes plasma radially out, forming a depleted plasma duct and guiding the radiation. The radius of the self-trapped laser is ~c/ωpo, where ωpo is the unperturbed plasma frequency and c is the velocity of light in vacuum

Published in:

IEEE Transactions on Plasma Science  (Volume:24 ,  Issue: 4 )