Beatwave excitation of plasma wave and electron acceleration

1991 ◽  
Author(s):  
Y. Kitagawa ◽  
K. Sawai ◽  
K. Mima ◽  
K. Nishihara ◽  
H. Azechi ◽  
...  
Keyword(s):  
Plasma Wave ◽  
Electron Acceleration

scholarly journals Non linear surface plasma wave assisted electron acceleration in metal structure

2020 ◽  
Vol 1531 ◽  
pp. 012021
Author(s):  
Kanwal Gurbakhsish Kaur ◽  
Pawan Kumar ◽  
Niti Kant ◽  
Jyoti Rajput
Keyword(s):  
Plasma Wave ◽  
Metal Structure ◽  
Electron Acceleration ◽  
Surface Plasma ◽  
Non Linear

scholarly journals Self-magnetic field effects on laser-driven wakefield electron acceleration in axially magnetized ion channel

2020 ◽  
Vol 38 (4) ◽  
pp. 222-228
Author(s):  
A. Kargarian ◽  
K. Hajisharifi
Keyword(s):  
Magnetic Field ◽  
Ion Channel ◽  
Relativistic Electron ◽  
Electron Energy ◽  
Plasma Wave ◽  
Electron Acceleration ◽  
Energy Gain ◽  
The Self ◽  
Magnetic Field Effects ◽  
Field Effects

AbstractIn this paper, we have investigated the relativistic electron acceleration by plasma wave in an axially magnetized plasma by considering the self-magnetic field effects. We show that the optimum value of an external axial magnetic field could increase the electron energy gain more than 40% than that obtained in the absence of the magnetic field. Moreover, results demonstrate that the self-magnetic field produced by the electric current of the energetic electrons plays a significant role in the plasma wakefield acceleration of electron. In this regard, it will be shown that taking into account the self-magnetic field can increase the electron energy gain up to 36% for the case with self-magnetic field amplitude Ωs = 0.3 and even up to higher energies for the systems containing stronger self-magnetic field. The effects of plasma wave amplitude and phase, the ion channel field magnitude, and the electron initial kinetic energy on the acceleration of relativistic electron have also been investigated. A scaling law for the optimization of the electron energy is eventually proposed.

Trapped electron acceleration by a laser-driven relativistic plasma wave

Nature ◽  
1994 ◽  
Vol 368 (6471) ◽  
pp. 527-529 ◽  
Author(s):  
M. Everett ◽  
A. Lal ◽  
D. Gordon ◽  
C. E. Clayton ◽  
K. A. Marsh ◽  
...  
Keyword(s):  
Plasma Wave ◽  
Electron Acceleration ◽  
Relativistic Plasma ◽  
Trapped Electron

scholarly journals Direct Electron Acceleration By An Intense Nonparaxial Cosh-Gaussian Laser Beam Driven Electron Plasma Wave in Plasma

2021 ◽  
Author(s):  
Gunjan Purohit ◽  
Bineet Gaur ◽  
Amita Raizada ◽  
Pradeep Kothiyal
Keyword(s):  
Laser Beam ◽  
Plasma Wave ◽  
Electron Acceleration ◽  
Electron Plasma ◽  
Acceleration Process ◽  
Gaussian Laser Beam ◽  
Plasma Parameters ◽  
Electron Plasma Wave ◽  
Self Focusing ◽  
Paraxial Ray

Abstract Excitation of electron plasma wave by an intense short laser pulse is relevant to electron acceleration process in laser plasma interactions. In this work, the self-focusing of an intense cosh-Gaussian laser beam in collissionless plasma have been studied in the non-paraxial region with relativistic and ponderomotive nonlinearities. Further, the effect of self-focusing of the cosh-Gaussian laser beam on the excitation of electron plasma wave and on subsequent electron acceleration has been investigated. Analytical expressions for the beam width parameter/intensity of cosh-Gaussian laser beam and the electron plasma wave have been established and solved numerically. The energy of the accelerated electrons has also been obtained. The strong self-focusing of the cosh-Gaussian laser beam in plasmas stimulates a large amplitude electron plasma wave, which further accelerates the electrons. The well-established laser and plasma parameters have been used in numerical computation. The results have been compared with paraxial ray approximation, Gaussian profile of laser beam and only with the relativistic nonlinearity. Numerical results suggest that the focusing of the cosh-Gaussian laser beam, the amplitude of electron plasma wave, and energy gain by electrons increases in non-paraxial region, when relativistic and ponderomotive nonlinearities are simultaneously operative. In addition, it has also been observed that the electron plasma wave is driven more efficiently by a cosh-Gaussian laser beam that accelerates plasma electrons to higher energies.

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