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Nonlinear Interaction of q-Gaussian Laser Beam with Unmagnetized Plasma: Effect of Relativistic and Ponderomotive Nonlinearity
Abstract
The present work explores the nonlinear interaction of q-Gaussian laser beam with unmagnetized plasma. Relativistic and ponderomotive nonlinearities are taken together in the present investigation. The Wentzel–Kramers–Brillouin (WKB) approximation and paraxial theory are used for deriving the secondorder ODE-expressing variation of beam waist against the normalized propagation distance. Further, the behavior of the beam waist against normalized propagation distance is explored through the RK4 method. The impact of established parameters of laser and plasma such as plasma temperature, laser intensity, plasma density, and q parameter on the beam waist is also analyzed.
About the Authors
Keshav Walia
Department of Physics, DAV University Jalandhar
India
India
Jalandhar
Anamika Tripathy
Department of Physics, DAV University Jalandhar
India
India
Jalandhar
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Review
For citations:
Walia K., Tripathy A. Nonlinear Interaction of q-Gaussian Laser Beam with Unmagnetized Plasma: Effect of Relativistic and Ponderomotive Nonlinearity. Zhurnal Prikladnoii Spektroskopii. 2025;92(2):261.
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