Electron Acceleration by a radially polarised cosh-Gaussian laser beam in vacuum

Singh, Jitender; Rajput, Jyoti; Ghotra, Harjit Singh; Kant, Niti

doi:10.1088/1572-9494/ac02b6

Cited by 21 publications

(8 citation statements)

References 27 publications

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“…Invention of short laser pulses Wake field acceleration by using plasma medium is also a promising method which helps particles to achieve more energy compared to RF based accelerators [10,13,14]. Researchers shows the dynamics of electron by applying azimuthal magnetic field in vacuum for circularly polarised and linear laser pulses [15].…”

Section: Introductionmentioning

confidence: 99%

Periodic chirp electron acceleration due to linearly polarized lasers

Middha,

Thakur,

Kant

et al. 2023

J. Phys.: Conf. Ser.

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Laser beat wave electron acceleration scheme provides a number of distinct advantages and exciting possibilities in terms of high electron’s energy gain, compact accelerator design, versatility, high repetition rates and fundamental research. In this scheme, two linearly polarized lasers of same amplitude and the frequency have been considered propagating θ and − θ along the z axis with their electric field components in x and z axis respectively. Peak intensity is observed for resultant electric field at the crossing of both lasers at a focal spot. At this focus, constructive interference occurs and resultant beat wave with lesser phase velocity compared to the speed of light is produced. Electron is injected at an angle of δ and trapped by this beat wave and accelerated. In this manuscript, we have applied periodic chirp to the lasers and compared the electron energy with the linear and quadratic chirp. The high energetic electron beam can be utilized to drive compact free-electron lasers, which enable the production of intense and coherent X-ray or gamma-ray radiation for imaging, materials research, and other applications.

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Section: Introductionmentioning

confidence: 99%

Periodic chirp electron acceleration due to linearly polarized lasers

Middha,

Thakur,

Kant

et al. 2023

J. Phys.: Conf. Ser.

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“…[1][2][3][4] SRS is a noteworthy issue that is not limited to the Inertial Confinement Fusion (ICF) procedure alone. Additionally, this phenomenon poses a noteworthy constraint in various high-power interactions between lasers and plasmas, such as electron acceleration, particularly laser wakefield and beat wave accelerators and THz radiation generation [5][6][7][8][9][10][11][12][13]. Within forward Raman scattering, an electron plasma wave is produced, characterized by an elevated phase velocity, propelling charged particles to exceptionally elevated energies.…”

Section: Introductionmentioning

confidence: 99%

Suppression of stimulated Raman scattering in magnetized plasma channel

Khan,

Kamboj,

Kant

et al. 2023

J. Phys.: Conf. Ser.

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The current study illustrates the occurrence of Stimulated Raman Scattering (SRS) within a plasma channel characterized by magnetized density conditions. Stimulated forward Raman scattering takes place when a laser beam with a q-Gaussian profile traverses a plasma while being exposed to a wiggler magnetic field. The coupling between the applied magnetic field and the generated Langmuir wave ensures the Raman process generation. As a result, second Langmuir wave is produced which remains strongly damped on the electrons. An external magnetic field is employed for the effective suppression of the SRS. The initial enhancement in the growth rate is observed with the magnetic field and after attaining the maxima, it suppresses with the growth rate.

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“…In a laser-heated capillary discharge waveguide, a relativistic strong laser pulse with a peak power of 0.85 PW is employed to produce electron beams with energies up to 7.8 GeV [16]. Laser propagation characteristics plays an important role in electron energy gain while acceleration in vacuum and ion channel [17][18][19][20]. The characteristics of a radially polarized (RP) laser pulse, such as the presence of a stronger longitudinal electric field than the transverse field, are employed to improve electron trapping and acceleration to energies of the order of GeV [17,18].…”

Section: Introductionmentioning

confidence: 99%

“…Wen et al experimentally demonstrated that milli joule laser pulses produce electron bunches of MeV energy with low divergence and provided a model for electron acceleration by RP tightly focused laser pulses in micro-channel [19]. The RP cosh-Gaussian (ChG) laser is used to explore electron acceleration in vacuum [20]. The decentered parameter dependent ChG laser can create highly energetic electron even with low power lasers.…”

Section: Introductionmentioning

confidence: 99%

Cosh-Gaussian laser pulse influenced electron acceleration in an ion channel

Ghotra¹

2022

Laser Phys. Lett.

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The electron acceleration in a prepared ion channel is studied theoretically by using a radially polarized (RP) cosh-Gaussian (ChG) laser pulse. The peculiar propagation properties of ChG laser cause it to focus early and over a shorter time than a Gaussian laser pulse, making it suitable for accelerating electrons to extremely high energies over a small duration. The electrostatic field formed by an ion channel prevents electrons from escaping the interaction zone due to their transverse oscillations, whereas the decentering parameter of the ChG laser pulse influences electron energy gain. This combined role of RP-ChG laser and the effect of an ion channel causes an enhancement in the electron energy gain significantly to the order of GeV with laser intensity (∼ 10 20 W c m − 2 ) in an ion density channel (∼ 10 22 m − 3 ) with decentered parameter (∼2.15) for an incident laser pulse at initial phase ( ψ 0 = π ).

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Electron Acceleration by a radially polarised cosh-Gaussian laser beam in vacuum

Cited by 21 publications

References 27 publications

Periodic chirp electron acceleration due to linearly polarized lasers

Periodic chirp electron acceleration due to linearly polarized lasers

Suppression of stimulated Raman scattering in magnetized plasma channel

Cosh-Gaussian laser pulse influenced electron acceleration in an ion channel

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