Breathing-mode resonance of a complex plasma disk

  • Sheridan T
  • Buckey C
  • Cox D
 et al. 
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Abstract

We have experimentally characterized the breathing mode oscillation of a strongly-coupled, dusty plasma disk. Steady-state oscillations are excited by sinusoidally modulating the plasma density, creating a single-frequency, in-plane driving force. Resonance curves agree well with damped harmonic oscillator theory. A response at the second harmonic is observed and found to increase with the square of the driving force, indicating a quadratic nonlinearity. © 2004 Elsevier B.V.

Author-supplied keywords

  • 45.50.-j
  • 52.27.Lw
  • 52.70.Nc
  • Breathing mode
  • Complex plasma
  • Mesoscopic system
  • Nonlinear oscillator

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Authors

  • T. E. Sheridan

  • C. R. Buckey

  • D. J. Cox

  • R. J. Merrill

  • W. L. Theisen

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