-
Article
Excitation of upper hybrid wave by cross focused q-Gaussian laser beams in graded index plasma channel
In this paper, a method is presented for exciting an upper hybrid wave (UHW) in a preformed parabolic plasma channel. The plasma channel is magnetized perpendicular to the propagation direction of laser beams....
-
Article
Dynamics of q-Gaussian laser beam in thermal quantum plasma: self-focusing self-trap** and self-phase modulation
This paper presents theoretical investigation of propagation characteristics of q-Gaussian laser beam in thermal quantum plasmas. The field distribution in the medium is expressed in terms of beam width parameter...
-
Article
Stimulated Raman scattering of self-focused Laguerre–Gaussian laser beams in axially inhomogeneous plasma
This paper presents a theoretical investigation on stimulated Raman scattering (SRS) of intense Laguerre–Gaussian (LG) laser beams propagating through plasma with axial density ramp. The optical nonlinearity o...
-
Article
Self-focusing of dark hollow Gaussian laser beams in cubic–quintic nonlinear media
The investigation focused on the self-focusing behavior of a specific type of laser beams called dark hollow Gaussian beam has been presented. The approach involved formulating a numerical solution for the non...
-
Article
Electron acceleration by self focused quadruple Gaussian laser beams in thermal quantum plasma: effect of relativistic optical nonlinearity of plasma
A method for achieving relativistic electron acceleration using intense laser beams has been introduced. As intense laser beams propagate through plasmas, they induce an electron plasma wave (EPW) at the pump ...
-
Article
Electron acceleration by elliptical q-Gaussian laser pulse in collisionless plasma with exponential density ramp: combined effect of self-focusing and self-compression
A scheme for electron acceleration by self-focused and self-compressed \(q\) q -Gaussian las...
-
Article
Self-focusing, self-trap** and self-phase modulation of elliptical q-Gaussian laser beams in collisionless plasma
Theoretical investigation on optical self-action effects of intense q-Gaussian laser beams interaction with collisionless plasmas has been investigated in detail. Emphasis on put on investigating the dynamics of ...
-
Article
Second-harmonic generation of two cross-focused q-Gaussian laser beams by nonlinear frequency mixing in plasmas
A scheme for second-harmonic generation (SHG) of a pair of q-Gaussian laser beams interacting nonlinearly with underdense plasma has been proposed. Due to the relativistic increase in electron mass under the inte...
-
Article
Quadruple Gaussian laser beam in cubic-quintic nonlinear media: effect of nonlinear absorption
An investigation on nonlinear propagation of Quadruple Gaussian (Q.G) laser beams propagating through dissipative media possessing cubic-quintic nonlinearity has been presented. The formulation is based on fin...
-
Article
Excitation of electron plasma wave by self-focused Laguerre–Gaussian laser beams in axially inhomogeneous plasma: effect of orbital angular momentum of photons
Theoretical investigation has been conducted into the dynamics of electron plasma waves (EPWs) driven by lasers in plasmas featuring axial density ramps. To explore the impact of the laser beams' orbital angul...
-
Article
Third harmonic generation of self-focused \({\varvec{q}}\) -Gaussian laser beams in nonlinear media: effect of cubic quintic nonlinearity
This paper presents theoretical investigation on third harmonic generation (THG) in nonlinear media. Variational method has been adopted to find the semi analytical solution of the wave equation governing the ...
-
Article
Spatial frequency chir** of q-Gaussian laser beams in graded index plasma channel with ponderomotive nonlinearity
Chir** of spatial frequency of q-Gaussian laser beams interacting nonlinearly with plasmas with radially inhomogeneous electron density has been investigated theoretically. Due to the radial nonuniformity of th...
-
Article
Electron plasma wave excitation by self-focused cosh gaussian laser beams in axially inhomogeneous plasma: effect of density ramp
Dynamics of the laser driven electron plasma waves (EPWs) in plasmas with axial density ramp has been investigated theoretically. The effect of self focusing of the laser beam on the power of laser excited EPW...
-
Article
Quadruple Gaussian laser beams in thermal quantum plasma: self-focusing, self-trap** and self-phase modulation
This paper presents a theoretical investigation into the self-action effects of intense laser beams interacting with fusion plasmas. The focus of the study is on the phenomena related to the nonlinear refracti...
-
Article
Self-focusing of laser-driven ion acoustic waves in plasma with axial density ramp
In the present work, dynamics of the laser-driven ion acoustic waves (IAWs) in plasmas with axial density ramp has been investigated theoretically. The effect of propagation characteristics of the laser beam o...
-
Article
Generation of superthermal electrons by self-focused Cosh Gaussian laser beams in inertial confinement fusion plasma
Theoretical study on the generation of superthermal electrons by intense laser beams in hot dense plasmas during inertial confinement fusion has been presented. In order to obtain uniform heating of the fuel p...
-
Article
Formation of elliptical \(q\) -Gaussian breather solitons in diffraction managed nonlinear optical media: effect of cubic quintic nonlinearity
This paper presents theoretical investigation on the formation of elliptical \(q\) q -Gaussi...
-
Article
Self-focusing of rippled \(q\) -Gaussian laser beams in plasmas: effect of relativistic nonlinearity
Theoretical investigation on self-focusing of \(q\) q -Gaussian laser beam propagating throu...
-
Article
Optical properties and effect of magnetic field on energy spectra of a GaAs spherical quantum dot
In the present work, optical absorption coefficients and refractive index changes of a GaAs spherical quantum dot are investigated within the framework of the Coulomb plus linear harmonic potential. To this ef...
-
Article
Excitation of Electron Plasma Wave by Self Focused Cosh-Gaussian Laser Beams in Collisionless Plasmas: Effect of Density Ramp
Dynamics of the laser-driven electron plasma waves (EPWs) in plasmas with axial density ramp has been investigated theoretically. The effect of self-focusing of the laser beam on the power of laser-excited EPW...
