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The charge on an aggregate immersed in a plasma environment distributes itself over the aggregate's surface; this can be approximated theoretically by assuming a multipole distribution. The dipole-dipole (or higher order) charge…

Plasma Physics · Physics 2015-06-03 Lorin S. Matthews , Victor Land , Qianyu Ma , Jonathan D. Perry , Truell W. Hyde

This paper reports experiments on self$-$excited dust acoustic waves (DAWs) and its propagation characteristics in a magnetized rf discharge plasma. The DAWs are spontaneously excited in dusty plasma after adding more particles in the…

Plasma Physics · Physics 2020-03-18 Mangilal Choudhary , Roman Bergert , Slobodan Mitic , Markus H. Thoma

The propagation characteristics of small-amplitude dust-acoustic (DA) solitary waves (SWs) and shocks are studied in an unmagnetized dusty plasma with a pair of trapped positive and negative ions. Using the standard reductive perturbation…

Plasma Physics · Physics 2017-07-04 N. C. Adhikary , A. P. Misra , M. K. Deka , A. N. Dev

The nonlinear amplitude modulation of longitudinal dust lattice waves (LDLWs) propagating in a dusty plasma crystal is investigated in a continuum approximation. It is shown that long wavelength LDLWs are modulationally stable, while…

Soft Condensed Matter · Physics 2009-11-10 I. Kourakis , P. K. Shukla

We consider influence of finite size of ions on properties of classic plasmas. We focus our attention on the ion sound for electron-ion plasmas. We also consider dusty plasmas, where we account finite size of ions and particles of dust and…

Plasma Physics · Physics 2015-03-06 Pavel A. Andreev , L. S. Kuz'menkov

The propagation of microwaves across a turbulent plasma density layer is investigated with full-wave simulations. To properly represent a fusion edge-plasma, drift-wave turbulence is considered based on the Hasegawa-Wakatani model.…

Plasma Physics · Physics 2017-07-26 Alf Köhn , Eberhard Holzhauer , Jarrod Leddy , Matthew B. Thomas , Roddy G. L. Vann

Theoretical and numerical studies are presented of the nonlinear amplitude modulation of dust-acoustic (DA) waves propagating in an unmagnetized three component, weakly-coupled, fully ionized plasma consisting of electrons, positive ions…

Plasma Physics · Physics 2009-11-10 I. Kourakis , P. K. Shukla

An investigation of dust-acoustic solitary waves in unmagnetized dusty plasma whose constituents are inertial charged dust grains, Boltzmannian electrons and nonthermal ions has been conducted. The pseudo potential as well as the reductive…

Plasma Physics · Physics 2007-05-23 K. Annou , R. Annou

The nonlinear propagation of large amplitude dust ion-acoustic (DIA) solitary waves (SWs) in an ion-beam plasma with stationary charged dusts is investigated. For typical plasma parameters relevant for experiments [J. Plasma Phys.…

Plasma Physics · Physics 2011-12-30 A. P. Misra , N. C. Adhikary

The theoretical description of complex (dusty) plasmas requires multiscale concepts that adequately incorporate the correlated interplay of streaming electrons and ions, neutrals, and dust grains. Knowing the effective dust-dust…

Plasma Physics · Physics 2015-04-22 Patrick Ludwig , Wojciech J. Miloch , Hanno Kählert , Michael Bonitz

A linear theory of dust acoustic (DA) and dust ion-acoustic (DIA) waves in a self-gravitating collisional dusty plasma contaminated by variable-charge impurities is presented for a self-consistent closed system. The ion-drag force arising…

Pattern Formation and Solitons · Physics 2007-05-23 Amar P Misra , K. Roy Chowdhury , A. Roy Chowdhury

The linear dispersion properties of transverse shear waves in a strongly coupled dusty plasma are experimentally studied by exciting them in a controlled manner with a variable frequency external source. The dusty plasma is maintained in…

Plasma Physics · Physics 2008-07-07 P. Bandyopadhyay , G. Prasad , A. Sen , P. K. Kaw

In this paper, the collective dynamics of the large aspect ratio dusty plasma is studied over a wide range of discharge parameters. An inductively coupled diffused plasma, which creates an electrostatic trap to confine the negatively…

Plasma Physics · Physics 2018-03-14 Mangilal Choudhary , S. Mukherjee , P. Bandyopadhyay

It is demonstrated that low frequency shear modes in a strongly coupled, inhomogeneous, dusty plasma can grow on account of an instability involving the dynamical charge fluctuations of the dust grains. The instability is driven by the…

Plasma Physics · Physics 2009-11-07 Amruta Mishra , P. K. Kaw , A. Sen

It is not fully understood how electromagnetic waves propagate through plasma density fluctuations when the size of the fluctuations is comparable with the wavelength of the incident radiation. In this paper, the perturbing effect of a…

Plasma Physics · Physics 2016-09-21 Alf Köhn , Eberhard Holzhauer , Jarrod Leddy , Matthew B Thomas , Roddy G L Vann

Dust aggregates are formed in a laboratory plasma as monodisperse spheres are accelerated in a self-excited dust density wave. The asymmetric charge on the aggregates causes them to rotate as they interact with the sheath electric field or…

Plasma Physics · Physics 2013-04-09 Lorin S. Matthews , Jorge Carmona-Reyes , Victor Land , Truell W. Hyde

Charges on the dust grains immersed in a plasma vary in time. We follow the hydrodynamic approach to obtain dispersion relations for some low frequency electrostatic modes, taking into account charge fluctuation on the dust. We have used…

Plasma Physics · Physics 2007-05-23 Bizhan Farokhi

The modulational instability of dust-acoustic (DA) waves (DAWs), and corresponding DA rogue waves (DARWs) in a realistic space dusty plasma system (containing inertial warm positively and negatively charged dust, isothermal ions, and…

Plasma Physics · Physics 2017-11-22 N. A. Chowdhury , A. A. Mamun

We study the influence of ion beam and charged dust impurity on the propagation of dust ion-acoustic (DIA) solitary wave (SW) in an unmagnetized plasma consisting of Boltzmann distributed electrons, positive ions, positive ion beam and…

Plasma Physics · Physics 2012-10-05 M. K. Deka , N. C. Adhikary , A. P. Misra , H. Bailung , Y. Nakamura

In semiconductor manufacturing, contamination due to particulates significantly decreases the yield and quality of device fabrication, therefore increasing the cost of production. Dust particle clouds can be found in almost all plasma…

Astrophysics · Physics 2008-11-26 B. Smith , T. Hyde , L. Matthews , J. Reay , M. Cook , J. Schmoke