Self-Focusing of Hermite–Cosh–Gaussian Laser Beams in a Plasma Under a Weakly Relativistic and Ponderomotive Regime

Gavade, K. M.; Urunkar, T. U.; Vhanmore, B. D.; Valkunde, A. T.; Takale, M. V.; Patil, Saiprasad

doi:10.1007/s10812-020-01030-1

Cited by 24 publications

(1 citation statement)

References 19 publications

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“…Gavade et al [ 37 ] established the nonlinear coupled differential equations for the transverse beam‐width parameters of Elegant Hermite–Cosh–Gaussian (EHChG) beam propagation in plasma by using a weakly relativistic and ponderomotive regime. It was found that an increase in the decentralized parameter in both dimensions of the beam results in an ascent in the extent of self‐focusing, with the subsequent reduction in the self‐focusing length.…”

Section: Introductionmentioning

confidence: 99%

Influence of non‐uniform magnetic field on relativistic q‐Gaussian laser pulses propagating in magnetized plasmas

Daraei

Abedi‐Varaki

2022

Contributions to Plasma Physics

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In this work, the influence of a non‐uniform magnetic field on the self‐focusing of relativistic q‐Gaussian (QG) laser pulse propagating in magnetized plasma is studied. Utilizing the non‐linear Schrodinger equation with higher‐order paraxial approximation, the higher‐order terms of the dielectric function and the eikonal in the presence of a non‐uniform magnetic field have been obtained. Numerical results reveal that while the non‐uniform magnetized field decreases, the pulse width parameter (g) decreases, and subsequently the spot‐size of the laser declines too. As a consequence, the QG laser pulse will be more focused. Besides, it is shown that increasing the values of q‐parameter leads to a decline in self‐focusing qualities and, at lower values of q‐parameter, sharp self‐focusing of QG laser pulse is observed. Furthermore, it is found that when the QG laser pulse is propagated in the magnetized plasma, the amplitude of the pulse width decreases with decreasing the δ‐parameter, and consequently, the laser pulse becomes more compressed. Moreover, it is observed that the application of a non‐uniform magnetic field improves the self‐focusing of the QG laser pulse propagated through magnetized plasma.

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Section: Introductionmentioning

confidence: 99%