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

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

doi:10.1103/PhysRevLett.96.234301

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

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

Radiology

Research output: Contribution to journal › Article › peer-review

25 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 language	English (US)
Article number	234301
Journal	Physical Review Letters
Volume	96
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.96.234301
State	Published - 2006

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.96.234301

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title = "Parametric amplification of the dynamic radiation force of acoustic waves in fluids",

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.",

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AB - 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.

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

Abstract

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