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Nonlinear compressional pulses in a 2D crystallized dusty plasma
Journal article   Peer reviewed

Nonlinear compressional pulses in a 2D crystallized dusty plasma

V Nosenko, S Nunomura and J Goree
Physical review letters, Vol.88(21), pp.215002-2150024
05/27/2002
DOI: 10.1103/PhysRevLett.88.215002
PMID: 12059479

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Abstract

Compressional pulses were launched in a two-dimensional Yukawa lattice, a hexagonal monolayer of polymer microspheres suspended in a plasma. The pulsed wave was excited by a laser beam, and nonlinear effects were observed for Mach numbers M>0.07 and for variation of particle number density delta(n)/n>0.1, but no steepening of the pulse was detected. The pulse propagation speed was found to be comparable to the sound speed of compressional waves launched with sinusoidal excitation.

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