Electron Acceleration by a Relativistic Electron Plasma Wave in Inverse-Free-Electron Laser Mechanism

Yadav, Monika; Sharma, Suresh C.; Gupta, Devki Nandan

doi:10.1109/tps.2018.2843362

Cited by 10 publications

(2 citation statements)

References 31 publications

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“…When an ultra-short intense laser beam propagates through the plasma, the beam itself becomes focused and produces ultra-high laser intensity over a large distance, which is used for the excitation of large amplitude electron plasma wave. These laser-driven plasma waves are used for ultra-high energies in the electron acceleration process (Modena et al 1995;Yadav et al 2018). Therefore, self-focusing of an intense laser beam in plasma is the most important nonlinear phenomena in laser plasma interaction.…”

Section: Introductionmentioning

confidence: 99%

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

Purohit

Gaur²,

Raizada³

et al. 2021

Preprint

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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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Section: Introductionmentioning

confidence: 99%

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

Purohit

Gaur²,

Raizada³

et al. 2021

Preprint

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show abstract

“…These devices have a number of advantages over the conventional radio frequency (RF) cavity accelerators that provide an accelerating gradient of 100 MeV/m. The laser beam-driven plasma accelerators and the inverse free-electron laser (IFEL) [1]- [25] provide accelerating gradient 1 GeV/m and particle of large intensity too high-energy physics accelerators and free-electron laser [26], [27] applications. A free-electron laser consists of an electron beam propagating through a periodic magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Dual-Frequency-Inverse Free-Electron Laser Accelerator With Bi-Period Undulator

Khullar¹,

Mishra

2021

IEEE Trans. Plasma Sci.

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In this article, we have examined the effect of bi-period undulator magnetic field on inverse free-electron laser (IFEL) accelerator. The IFEL equations are derived and synchrotron radiation losses are included in the analysis. The accelerator acts as a dual channel when the phase between the two undulator field components φ 2 is equal to π and as one period for φ 2 = π/2. Both the IFEL accelerator parameters accelerating gradient and saturation length are affected by varying φ 2 .

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Electron acceleration by a cosh-Gaussian laser beam driven electron plasma wave: extended paraxial theory

Purohit¹,

Gaur²,

Raizada³

et al. 2021

Opt Quant Electron

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Electron Acceleration by a Relativistic Electron Plasma Wave in Inverse-Free-Electron Laser Mechanism

Cited by 10 publications

References 31 publications

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

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

Dual-Frequency-Inverse Free-Electron Laser Accelerator With Bi-Period Undulator

Electron acceleration by a cosh-Gaussian laser beam driven electron plasma wave: extended paraxial theory

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