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Experimental Measurement of Overlapped Sheaths
Mudi Chen, Michael Dropmann, Ke Qiao +3
Due to the complicated environment of the plasma sheath, it is difficult to experimentally measure plasma characteristics in the narrow geometry where sheaths from opposite boundar…
Dust as probes: determining confinement and interaction forces
Khandaker Sharmin Ashrafi, Razieh Yousefi, Mudi Chen +2
Complex plasmas are interesting systems as the charged dust can self-assemble into different types of ordered structures. To understand the mechanisms which govern the transitions…
Non-perturbative experiments on plasma-mediated particle interaction and the ion wake potential
Ke Qiao, Zhiyue Ding, Jie Kong +3
A non-perturbative method is introduced to measure the particle-particle interaction strengths and in-situ confinement for a vertically aligned dust particle pair in a complex plas…
Dust cluster spin in complex (dusty) plasmas
Bo Zhang, Jie Kong, Mudi Chen +3
The spontaneous rotation of small dust clusters confined inside a cubical glass box in the sheath of a complex plasma was observed in experiment. Due to strong coupling between the…
Determination of interaction between a dust particle pair in complex plasmas
Ke Qiao, Zhiyue Ding, Jie Kong +3
A non-intrusive method to measure particle interaction using only the thermal motion of the particles is applied to a vertically aligned dust particle pair in a complex plasma. The…
Charge of dust particles in a particle chain
Razieh Yousefi, Mudi Chen, Lorin Swint Matthews +1
Charged dust particles form structures which are extended in the vertical direction in the electrode sheath of a rf discharge when confined within a glass box. The charge on each p…