Abstract
In the present paper, we have investigated the self-focusing of zeroth-order Bessel–Gaussian beams in collisional plasma with density ripple. Based on Wentzel–Kramers–Brillouin and the paraxial ray approximations, the nonlinear differential equation governing the evolution of beam-width parameter is evaluated. The variation of beam-width parameter with propagation distance is examined for different values of ripple wave number and beam parameters. From our study, it is seen that stronger self-focusing is obtained when the density ripple is important. The results corresponding to Gaussian beams are deduced from this work as a particular case.
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Ouahid, L., Dalil-Essakali, L. & Belafhal, A. Evolution of the beam-width parameter of zeroth-order Bessel–Gaussian beams in collisional plasma with density ripple. Opt Quant Electron 51, 109 (2019). https://doi.org/10.1007/s11082-019-1818-8
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DOI: https://doi.org/10.1007/s11082-019-1818-8