Journal article
Nonlinear interaction of compressional waves in a 2D dusty plasma crystal
Physical review letters, Vol.92(8), pp.085001-850014
02/27/2004
DOI: 10.1103/PhysRevLett.92.085001
PMID: 14995783
Abstract
Nonlinear mixing and harmonic generation of compressional waves were studied in a 2D Yukawa (screened Coulomb) triangular lattice. The lattice was a monolayer of highly charged polymer microspheres levitated in a plasma sheath. Two sinusoidal waves with different frequencies were excited in the lattice by pushing the particles with modulated Ar+ laser beams. Waves at the sum and difference frequencies and harmonics were observed propagating in the lattice. Phonons interacted nonlinearly only above an excitation-power threshold due to frictional damping, as predicted by theory.
Details
- Title: Subtitle
- Nonlinear interaction of compressional waves in a 2D dusty plasma crystal
- Creators
- V Nosenko - University of IowaK AvinashJ GoreeB Liu
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.92(8), pp.085001-850014
- DOI
- 10.1103/PhysRevLett.92.085001
- PMID
- 14995783
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Language
- English
- Date published
- 02/27/2004
- Academic Unit
- Physics and Astronomy; Mechanical Engineering
- Record Identifier
- 9984199669502771
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