Parametric amplification of the dynamic radiation force of acoustic waves in fluids

Glauber T. Silva, Shigao Chen, Leonardo P. Viana

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

We report on parametric amplification in dynamic radiation force produced by a bichromatic acoustic beam in a fluid. To explain this effect we develop a theory taking into account the nonlinearity of the fluid. The theory is validated through an experiment to measure the dynamic radiation force on an acrylic sphere. Results exhibit an amplification of 66 dB in water and 80 dB in alcohol as the difference of the frequencies is increased from 10 Hz to 240 kHz.

Original languageEnglish (US)
Article number234301
JournalPhysical Review Letters
Volume96
Issue number23
DOIs
StatePublished - Jun 26 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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