Tarsem Singh Gill

Guru Nanak Dev University

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N. S. Saini

Guru Nanak Dev University

Munish Aggarwal

DAV University

Sona Bansal

Punjab Technical University

Harvinder Kaur

Delhi Skill and Entrepreneurship University

Ranju Mahajan

Guru Nanak Dev University

Ravinder Kaur

Lady Hardinge Medical College

Chanchal Bedi

Guru Nanak Dev University

Parveen Bala

Punjab Agricultural University

Harish Kumar

Punjab Technical University

Amandeep Singh Bains

University of Saskatchewan

Cooperative Institutions

Guru Nanak Dev University

Punjab Technical University

Government Medical College, Amritsar

Dr. B. R. Ambedkar National Institute of Technology Jalandhar

Lovely Professional University

Baylor University

Shivaji University

Institute of Medical Sciences

Indian Institute of Management Amritsar

University of Saskatchewan

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Obliquely Propagating Electron Acoustic Shock Waves in Magnetized Plasma

Brazilian Journal of Physics (2018)

Sona Bansal Munish Aggarwal Tarsem Singh Gill

Ion acoustic wave

10.1007/s13538-018-0609-1

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Citations (7)

Head on collision of ion - acoustic shock waves in weakly relativistic electron-positron-ion quantum plasma

Chinese Journal of Physics (2024)

Sona Bansal Tarsem Singh Gill

10.1016/j.cjph.2022.12.003

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Citations (0)

Dynamics of filament formation in magnetized laser produced plasma

Physica Scripta (2009)

Arvinder Singh Munish Aggarwal Tarsem Singh Gill

This paper presents an investigation of growth dynamics of spikes in a collisionless magnetoplasma. In most cases, magnetic field (self-generated or externally applied) permeates plasma. Therefore, it is very important to study the role of the magnetic field and growth of the spikes dynamics. In the current investigation, we have set up and solved the nonlinear differential equations for the growth and the width of the spikes in the presence of externally applied magnetic field. We have considered collisionless, magnetized plasma with ponderomotive nonlinearity. The effect of focusing/defocusing of main beam and magnetic field on growth dynamics of the spikes is studied.

Dynamics

Ponderomotive force

Linear growth

Plasma confinement

10.1088/0031-8949/80/01/015502

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Citations (4)

Enhanced Raman scattering of a rippled laser beam in a magnetized collisional plasma

Laser and Particle Beams (2004)

N. S. Saini Tarsem Singh Gill

In the laser–plasma interaction experiments, self-focusing and filamentation affect quite a large number of other parametric processes including stimulated scattering processes. Nonlinearity considered in the present problem is the collisional type. The coupling between the main beam, ripple, and excited electron plasma wave is strong. Authors have investigated the growing interaction of a rippled laser beam with an electron plasma wave leading to enhanced Raman scattering. An expression for scattered power is derived and the effect of the externally applied magnetic field on the enhancement of scattered power is observed. From computational results, it is observed that the effect of increased intensity of the main beam leads to suppression of power associated with the Raman scattered wave.

Filamentation

10.1017/s0263034604221073

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Citations (13)

Evolution of cylindrical/spherical shock formation in a dusty plasma with nonadiabatic dust charge variation

Waves in Random and Complex Media (2022)

Sona Bansal Tarsem Singh Gill

Cylindrical/spherical dust acoustic shock waves are studied in an unmagnetized plasma consisting of Maxwellian electrons, superthermal ions under the effect of nonadiabatic dust charge fluctuation. The dissipation is introduced in the system via nonadiabaticity, a new mechanism for the formation of shock waves. Using standard reductive perturbation method, nonplanar equation namely Korteweg–de Vries Burgers (KdVB) equation is derived and solution is obtained using the Weighted residual method. By use of weighted residual method, a progressive wave solution to nonplanar modified KdV Burgers equation is presented. It is shown that dust charge fluctuation produces dissipation which is responsible for shock formation. The solution shows that as one goes towards the axis of the cylinder or center of the sphere, the wave attenuates faster and the effects are shown in some 2D figures. We have studied various parametric influences on such shock structure and also showed how the gradual variations of these parameter affect the generation and structure of the shocks in their respective domain. Our results should be applicable to the formation of nonlinear DIA shock wave structures in regions in which dust grain is embedded in a Kappa distributed plasma, such as Saturn's magnetosphere.

Dusty plasma

10.1080/17455030.2022.2027552

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Citations (3)

Enhanced Raman scattering of a laser beam in an unmagnetized collisional plasma

Tarsem Singh Gill N. S. Saini

Summary form only given, as follows. The nonlinear three-wave interaction, as a physical concept in its variety of appearances has found its applications in hydrodynamics, nonlinear optics and plasma physics. There has been of considerable interest in the interactions of intense laser beams with plasmas. In this paper we have studied the nonlinear interaction of a rippled laser beam with an electron plasma wave leading to enhanced Raman scattering in a collisional unmagnetized plasma. The coupling between the main beam, ripple and plasma wave is strong. The excited plasma wave further interacts with rippled laser beam giving rise to enhanced Raman scattering. The role of collisional parameter S is highlighted. An expression for the scattered power is set up and solved numerically using Runge-Kutta method. The effects of the intensity of main beam and phase angle between ripple and the main beam on the normalized scattered power are also discussed. It is observed that the normalized scattered power is suppressed with increase in intensity of the main beam.

Thomson scattering

10.1109/plasma.2002.1030509

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Steady state self-focusing, self-modulation of laser beam in an inhomogeneous plasma

Optik (2010)

Ravinder Kaur Tarsem Singh Gill Ranju Mahajan

Self-focusing

Modulation (music)

10.1016/j.ijleo.2010.01.008

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Citations (24)

Theoretical analysis of planar and non‐planar electron ‐ acoustic shock waves in electron‐positron‐ion plasma

Contributions to Plasma Physics (2019)

Sona Bansal Munish Aggarwal Tarsem Singh Gill

The propagation properties of planar and non‐planar electron acoustic shock waves composed of stationary ions, cold electrons, and q‐non‐extensive hot electrons and positrons are studied in unmagnetized electron‐positron‐ion plasma. In this model, the Korteweg‐de Vries Burgers equation is obtained in the planar and non‐planar coordinates. We have investigated the combined action of the dissipation, non‐extensivity, density ratio of hot to cold electrons, concentration of positrons, and temperature difference of cold electrons, hot electrons, and positrons. It was found that the amplitude of shock wave in e‐p‐i plasma increases when the positron concentration and temperature increase. The same effect is observed in the case of kinematic viscosity η . Furthermore, it is noticed that spherical wave moves faster in comparison to the shock waves in cylindrical geometry. This difference arises due to the presence of the geometry term m /2 τ . It should be noted that the contribution of the geometry factor comes through the continuity equation. Results of our work may be helpful to illustrate the different properties of shock wave features in different astrophysical and space environments like supernova, polar regions, and in the vicinity of black holes.

Ion acoustic wave

10.1002/ctpp.201900019

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Citations (2)

Mirror Properties of Rare Earths by Electrons and Positrons

Springer eBooks (1980)

P. S. Takhar Tarsem Singh Gill

Holmium

Ytterbium

Neodymium

10.1007/978-1-4613-3054-7_51

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