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Temperature Measurements of a Dust Particle
(Journal of Plasma Physics, 2016-09)
The thermal motion of a dust particle levitated in a plasma chamber is similar to that described by Brownian motion in many ways. The primary difference between a dust particle in a plasma system and a free Brownian particle ...
Mode coupling and resonance instabilities in quasi-two-dimensional dust clusters in complex plasmas
(American Physical Society, 2014-09-16)
Small quasi-two-dimensional dust clusters consisting of three to eleven particles are formed in an argon plasma under varying rf power. Their normal modes are investigated through their mode spectra obtained from tracking ...
Nonlinear response of vertical paired structure in complex plasma
(Plasma Physics and Controlled Fusion, 2019-03-21)
The effect of the ion wake downstream of grains immersed in a flowing plasma is observed experimentally through the apparent non-reciprocal grain–grain interactions. Here we extend amplitude-frequency response analysis to ...
Helical Structures in Vertically Aligned Dust Particle Chains in a Complex Plasma
(Physical Review E, 2013-05-16)
Self-assembly of structures from vertically aligned, charged dust particle bundles within a glass box placed on the lower, powered electrode of a Gaseous Electronics Conference rf reference cell were produced and examined ...
Two-dimensional and three-dimensional Coulomb clusters in parabolic traps
(AIP Publishing, 2014-09-08)
We consider the shell structure of Coulomb clusters in an axially symmetric parabolic trap exhibiting a confining potential U_c(ρ,z)=(mω^2/2)(ρ^2+αz^2) . Assuming an anisotropic parameter α = 4 (corresponding to experiments ...
Dust particle pair correlation functions and the non-linear effect of interaction potentials
(IEEE Transactions on Plasma Science, 2019-07)
Dust kinetic temperature is a measure of the energy of the stochastic motion of a dust particle and is a result of the combination of the Brownian motion and the fluctuations in the dust charge and confining electric field. ...
Mode couplings and resonance instabilities in finite dust chains
(American Physical Society, 2015-05-08)
Employing a numerical simulation, the normal modes are investigated for finite, one-dimensional horizontal
dust chains in complex plasma. Mode couplings induced by the ion flow within the sheath are identified in the
mode ...
Interaction force in a vertical dust chain inside a glass box
(Physical Review E, 2014-07-31)
Small number dust particle clusters can be used as probes for plasma diagnostics. The number of dust particles as well as cluster size and shape can be easily controlled employing a glass box placed within a Gaseous ...
Simple method to measure the interaction potential of dielectric grains in a dusty plasma
(Physics Review E, 2010-09)
A simple minimally perturbative method is introduced which provides the ability to experimentally measure both the radial confining potential and the interaction potential between two individual dust particles, levitated ...
One-dimensional vertical dust strings in a glass box
(Physical Review E, 2011-07-28)
The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a gaseous electronics conference (GEC) reference cell was studied. A mechanism for creating a ...