A5007779450- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Magnetic confinement fusion research
- Laser-Matter Interactions and Applications
- Dust and Plasma Wave Phenomena
- Ionosphere and magnetosphere dynamics
- Advanced Fiber Laser Technologies
- Atomic and Molecular Physics
- Laser Material Processing Techniques
- High-pressure geophysics and materials
- Gyrotron and Vacuum Electronics Research
- Pulsed Power Technology Applications
- Mechanical and Optical Resonators
- Solar and Space Plasma Dynamics
- Plasma Diagnostics and Applications
- Food Waste Reduction and Sustainability
- Terahertz technology and applications
- Fluid Dynamics and Turbulent Flows
- Earthquake Detection and Analysis
- Nonlinear Optical Materials Studies
- Navier-Stokes equation solutions
- Meteorological Phenomena and Simulations
- Diamond and Carbon-based Materials Research
- Laser-Ablation Synthesis of Nanoparticles
University of Allahabad
2011-2025
Indian Institute of Technology Delhi
1987-2011
Raja Ramanna Centre for Advanced Technology
2006
Abstract In this paper, we theoretically study the electron Bernstein wave aided Hermite-Cosh-Gaussian laser beam absorption in collisional plasma with a static magnetic field. This may have potential to couple pre-existing coupled frequency <?CDATA ${\omega _1} = \omega + {\omega _0}$?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:msub> <mml:mi>ω</mml:mi> <mml:mn>1</mml:mn> </mml:msub> </mml:mrow> <mml:mo>=</mml:mo> <mml:mo>+</mml:mo>...
Abstract The counterpropagation interaction of two different laser beams with a spherical nanoparticle medium is used to excite large-amplitude electron plasma wave. having slightly frequencies cause beat wave generation at the number <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mrow> <mml:mi>k</mml:mi> <mml:mo>=</mml:mo> <mml:msub> <mml:mn>1</mml:mn> </mml:msub> </mml:mrow> <mml:mo>+</mml:mo> <mml:mn>2</mml:mn> </mml:math> and frequency <mml:mi>ω</mml:mi>...
Abstract In this present theoretical study, we investigate electron Bernstein wave (EBW) aided collisional nanocluster plasma heating by nonlinear interaction of two super-Gaussian laser beams. The interactions beams electric field profiles with electronic clouds nanoclusters cause the beat wave. ponderomotive force is generated through There may be good potential to excite EBW aiding cluster lead via cyclotron damping An analytical scheme proposed for anomalous and evolution temperature...
In this paper, a theoretical study has been proposed for excitation of electron Bernstein waves in collisional plasma with dc magnetic field by nonlinear interactions two cosh-Gaussian laser beams. The beat wave frequency and vector , exerts ponderomotive force on electrons. This the potential to drive field. convective loss is also discussed. An analytical formalism developed power going into respect total power. variation normalized distribution profile as function beam direction,...
Abstract A model of electron acceleration by an Bernstein mode in a parabolic density profile is developed. The has Gaussian profile. It could be excited via the conversion electromagnetic wave or beam. As it attains large amplitude, axially traps electrons moving close to its parallel phase velocity, where refers direction static magnetic field. are accelerated and tend get out with wave, transverse field enhances energy relativistic mass, increasing dephasing length. scheme can produce...