Electron Bernstein wave aided heating of collisional nanocluster plasma by nonlinear interactions of two super-Gaussian laser beams

Varma, Ashish; Kumar, Asheel

doi:10.1088/1555-6611/ac3835

Cited by 22 publications

(2 citation statements)

References 55 publications

(71 reference statements)

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“…Such physical mechanisms can contribute to plasma heating. In References [12][13][14][15] authors reported different mechanisms for EBW excitations in plasma using co-propagating or counter-propagating laser sources in the plasma. These findings explain how the laser-aided excitation of EBW can be useful for plasma heating as well as for tuning the heating rate.…”

Section: Introductionmentioning

confidence: 99%

Oblique Bernstein wave propagation in electron‐ion plasma with electron quantization effects

Hussain

Majeed

Ayub

et al. 2023

Contributions to Plasma Physics

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We have studied the role of electron quantization effects on the dispersion characteristics of the oblique electron Bernstein wave (EBW) in an electron-ion plasma using Vlasov-Poisson model. Our analysis shows that large thermal effects (as compared to quantization effects) give rise to the usual classical results while in the limit of strong magnetic field, the dispersion characteristics changes. The existence of a quantum Bernstein mode has been proposed which appears purely due to the electron quantization effects. The damping of the oblique EBW has also been analyzed in detail and we found that the magnitude of the damping of the wave decreases as we decrease the obliqueness parameter (parallel to perpendicular wavenumber ratio) which agrees with the earlier theoretical and experimental findings. Moreover, the strong quantization effects (ℏΩ e >> 2T) also tend to suppress the damping of EBW which contributes to the stabilization of the waves. The present findings are relevant to the laboratory laser-produced plasmas where strong external magnetic fields exist, and also to the dense astrophysical plasma environments.

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Section: Introductionmentioning

confidence: 99%

Oblique Bernstein wave propagation in electron‐ion plasma with electron quantization effects

Hussain

Majeed

Ayub

et al. 2023

Contributions to Plasma Physics

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“…The nonlinear interaction of laser beams with plasma as well as nanoclustered plasma is a fascinating research field due to its several applications, such as anomalous absorption [1], parametric decay process [2][3][4][5], harmonic generation [6,7], charged particle acceleration [8,9], terahertz radiation generation [10] electron heating [11][12][13] and soft x-ray generation [14]. Plasma is a good candidate as an interacting medium and promises large current generation via laser interaction.…”

Section: Introductionmentioning

confidence: 99%

Electron Bernstein wave aided Hermite cosh-Gaussian laser beam absorption in collisional plasma

Varma¹,

Mishra²,

Kumar³

et al. 2023

Laser Phys. Lett.

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In this paper, we theoretically study the electron Bernstein wave aided Hermite-Cosh-Gaussian laser beam absorption in collisional plasma with a static magnetic field. This laser beam may have the potential to couple the pre-existing electron Bernstein wave with the coupled wave frequency ω 1 = ω + ω 0 and wave number k 1 = k + k 0 where ω and ω 0 are the electron Bernstein wave and laser beam frequencies, respectively, and k and k 0 are the electron Bernstein wave and laser beam wave numbers, respectively. The plasma electron oscillatory velocities associated with the coupled wave mode produce the linear and nonlinear current density. An expression for the nonlinear absorption coefficient of an electron Bernstein wave aided Hermite cosh-Gaussian laser beam is analytically derived and more concisely discussed via different relative graphs. The graphical results promise that the absorption coefficient is strongly dependent on Hermite mode index m, beam decentered parameter d associated with the cosh term, laser beam width, laser beam frequency, electron Bernstein wave frequency, electron cyclotron frequency, electron thermal velocity and collisional frequency. Nonlinear coupling, collision phenomena and laser beam decentered parameter (very sensitive parameter) play an important role in absorption processes. The association of a very small electron Bernstein wave frequency with the laser beam causes too much of an increase in the absorption coefficient compared to only the laser beam. This efficient nonlinear absorption process may be applicable to plasma electron heating and the harmonic generation process.

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Decay instability of X-mode laser into upper hybrid and electron Bernstein waves in a plasma

et al. 2022

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Electron Bernstein wave aided heating of collisional nanocluster plasma by nonlinear interactions of two super-Gaussian laser beams

Cited by 22 publications

References 55 publications

Oblique Bernstein wave propagation in electron‐ion plasma with electron quantization effects

Oblique Bernstein wave propagation in electron‐ion plasma with electron quantization effects

Electron Bernstein wave aided Hermite cosh-Gaussian laser beam absorption in collisional plasma

Decay instability of X-mode laser into upper hybrid and electron Bernstein waves in a plasma

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