The Suprathermal Particles and Charge Fluctuation Effects on Waves in Complex Plasma

In the frame of kinetic theory we investigated the effects of suprathermal particles and dust charge fluctuations due to the inelastic collision between the dust grains and plasma particles by calculating the longitudinal dielectric permittivity in an unmagnetized dusty plasma on the wave modes propagating in a complex plasma. The ion and electron distribution were assumed to be Maxwell and Kapa distribution in the systems. It was shown that the wave frequency can be analyzed for various values of the spectral index K and the dust charge fluctuations. The landau damping rate and Propagation rate in dust charge fluctuation presence increase

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Distortion of an amplitude modulated electromagnetic signal with time-dependent dust charging

Journal of Plasma Physics ◽

10.1017/s002237781100033x ◽

2011 ◽

Vol 78 (1) ◽

pp. 33-38 ◽

Cited By ~ 2

Author(s):

AJAY GAHLOT ◽

RITU WALIA ◽

SURESH C. SHARMA ◽

R. P. SHARMA

Keyword(s):

The Self ◽

Time Dependent ◽

Electromagnetic Signal ◽

Charge Fluctuation ◽

Charge Fluctuations ◽

Electromagnetic Beam ◽

Dust Charge ◽

Self Focusing ◽

Dust Charge Fluctuations ◽

Dust Charging

AbstractA large amplitude modulated Gaussian electromagnetic beam propagating in a dusty plasma with dust charge fluctuations has been studied. The electrons are heated non-uniformly by the electromagnetic beam. For non-steady state, we obtain nonlinear current density in the presence of dust grains. This expression has been used to study the non-stationary self-focusing and resulting self-distortion of the amplitude modulated electromagnetic beam. It has been observed that the dust charge fluctuation increases the self-focusing of electromagnetic beam. It is also found that the effect of dust charge fluctuations is significant on the modulation index.

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Resonant electromagnetic wave mixing in a dusty plasma

Journal of Plasma Physics ◽

10.1017/s0022377800018900 ◽

1996 ◽

Vol 55 (3) ◽

pp. 349-358 ◽

Cited By ~ 2

Author(s):

Jin-Xiu Ma ◽

M. Y. Yu ◽

P. K. Shukla

Keyword(s):

Acoustic Waves ◽

Electromagnetic Waves ◽

Phase Conjugation ◽

Four Wave Mixing ◽

Dusty Plasmas ◽

Wave Mixing ◽

Ion Acoustic Waves ◽

Charge Fluctuations ◽

Dust Charge ◽

Dust Charge Fluctuations

Wave mixing resulting from the resonance of electromagnetic waves with ion acoustic waves modified by dust charge fluctuations is investigated. The corresponding nonlinear susceptibilities are derived and applied to the study of phase conjugation by four-wave mixing. It is shown that dust charge fluctuations can lead to a filling-up of the resonance-induced splitting of the phase-conjugate reflectivity, making the latter a useful tool for the diagnostics of dusty plasmas.

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