Controlling the Self-Focusing of Quadruple Gaussian Beam in Plasma

Moshkelgosha, Masoume

doi:10.1109/tps.2016.2555947

Cited by 13 publications

(4 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following Moshkelgosha's work [27], this treatment can be applicable for studying the complicated and nonlinear dependence of self-focusing on the involved parameters and one can discuss the behavior of EFP in order to investigate the effect of concerned laser and plasma parameters on rate of beam width reduction. In the next sections, the effect of laser and plasma on self-focusing is discussed based on EFP parameter and the validity of results will be discussed by means of solving for the second order boundary equation of beam width parameter.…”

Section: Effective Focusing Parametermentioning

confidence: 99%

The Effects of Ripple Characteristics on the Simultaneous Relativistic-Ponderomotive Self-Focusing

Moshkelgosha

2019

Acta Phys. Pol. A

View full text Add to dashboard Cite

In this study the nonlinear dependences of simultaneous ponderomotive-relativistic self-focusing on the ripple characteristics including the initial width of the ripple, the phase difference between the electric fields of the main beam and the ripple, the amplitude of electric field, and the position of the ripple on the wave front of the beam are found. The intensity profile of the main beam is regarded as Gaussian profile and the ripple is assumed as ring ripple. All the results are verified by solving for the boundary equation of beam width and good agreement is obtained. The presented approach can be applied for other profiles of the main beam and also for other ripple shapes such as the Gaussian ripples.

show abstract

Section: Effective Focusing Parametermentioning

confidence: 99%

The Effects of Ripple Characteristics on the Simultaneous Relativistic-Ponderomotive Self-Focusing

Moshkelgosha

2019

Acta Phys. Pol. A

View full text Add to dashboard Cite

show abstract

“…Also, these beams can deliver high power densities to the target while keeping power density below the threshold for other parametric instabilities. Mathematically such beam profiles are modeled by super Gaussian or the M.G [23,24] beam profiles. Most of the earlier investigations on propagation characteristics of the M.G laser beams in plasmas have been carried out in the framework of paraxial theory.…”

Section: Introductionmentioning

confidence: 99%

Linear and nonlinear propagation characteristics of multi-Gaussian laser beams

Gupta¹,

Kumar²

2020

Chinese Phys. B

View full text Add to dashboard Cite

Theoretical investigation on the propagation characteristics of a new class of laser beams known as multi Gaussian (M.G) laser beams has been presented. To investigate the linear characteristics, propagation of the laser beam in vacuum has been considered. Whereas, the nonlinear characteristics have been investigated in plasmas. Optical nonlinearity of the plasma has been modeled by relativistic mass nonlinearity of the plasma electrons in the field of laser beam. Formulation is based on finding the semi analytical solution of the wave equation for the slowly varying envelope of the laser beam. Particularly, the dynamical evolutions of the beam width and longitudinal phase of the laser beam have been investigated in detail.

show abstract

“…Literature review reveals that most of the earlier theoretical investigations on the dynamics of laser beams in non‐linear media have been carried out for Gaussian intensity profiles. In contrast to this picture, currently there is growing interest in a new class of laser beams known as quadruple laser beams . These beams possess high power and low divergence in comparison to Gaussian laser beams.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast to this picture, currently there is growing interest in a new class of laser beams known as quadruple laser beams. [34,35] These beams possess high power and low divergence in comparison to Gaussian laser beams. Such beams, therefore, can be used to achieve high power densities at the target while keeping the power density in the transmitting medium below the threshold for breakdown.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of quadruple laser pulses in under‐dense plasmas

Gupta

Singh

2017

Contrib. Plasma Phys

View full text Add to dashboard Cite

An analysis of dynamics of a quadruple laser pulse propagating through an under‐dense plasma is presented. The Drude model is used to derive the dielectric function of the plasma for relativistic non‐linearity in the electron mass. An approximate numerical solution of the nonlinear Schrödinger wave equation for the field of the laser beam is obtained with the help of the moment theory approach in the Wentzel–Kramers–Brillouin (WKB) approximation. Particular emphases are placed on the variations of spot size, pulse width, and longitudinal phase delay with the distance of propagation through the plasma. Self‐trapping of the laser pulse is also investigated.

show abstract

Controlling the Self-Focusing of Quadruple Gaussian Beam in Plasma

Cited by 13 publications

References 26 publications

The Effects of Ripple Characteristics on the Simultaneous Relativistic-Ponderomotive Self-Focusing

The Effects of Ripple Characteristics on the Simultaneous Relativistic-Ponderomotive Self-Focusing

Linear and nonlinear propagation characteristics of multi-Gaussian laser beams

Dynamics of quadruple laser pulses in under‐dense plasmas

Contact Info

Product

Resources

About