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- W2897514383 abstract "Abstract In the present paper, we have investigated self-focusing of the quadruple Gaussian laser beam in underdense cold quantum plasma. The non-linearity chosen is associated with the relativistic mass effect that arises due to quiver motion of electron and electron density perturbation caused by ponderomotive force. The non-linearity modifies the plasma frequency in the dielectric function and hence the refractive index of the medium. The focusing/defocusing of the quadruple laser depends on the refractive index of the medium. We have set up non-linear differential equation that controls the beam width parameter by using well-known paraxial ray approximation and Wentzel–Krammers–Brillouin approximation. The effect of intensity parameter and electron temperature is observed on laser beam self-focusing in the presence of cold quantum plasma. From the results, it is revealed that electron temperature and the initial intensity of the laser beam control the profile dynamics of the laser beam." @default.
- W2897514383 created "2018-10-26" @default.
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- W2897514383 date "2018-09-01" @default.
- W2897514383 modified "2023-09-27" @default.
- W2897514383 title "Relativistic ponderomotive self-focusing of quadruple Gaussian laser beam in cold quantum plasma" @default.
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- W2897514383 doi "https://doi.org/10.1017/s026303461800023x" @default.
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