Nonlinear compressional pulses in a 2D crystallized dusty plasma

被引：54

作者：

Nosenko, V ^{[1
]}

Nunomura, S ^{[1
]}

Goree, J ^{[1
]}

机构：

[1] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.88.215002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 deltan/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.

引用

页码：4 / 215002

页数：4

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