1203573

50 years of nonlinear acoustics

Konstantin Naugolnykh
University of Colorado/Zeltech, Boulder, United States

Episodes of nonlinear acoustics history related to several topics are discussed. Nonlinear evolution of finite amplitude wave, its distortion and weak shock wave formation, nonlinear absorption of the high intensity wave. Nonlinear wave propagation in a randomly inhomogeneous media, interaction of noises and regular signals.

Parametric array theoretical models, experimental test and applications in ocean and atmospheric sounding. Parametric acoustic array in oceanic waveguids.

High intensity sound propagation in microinhomogeneous solids and media with complex structure, anomalous nonlinear parameter effect, frequency dependence of the attenuation coefficient.

High-intensity focused ultrasound propagation in a tissue, nonlinear mechanism of heating by high-intensity focused ultrasound, which is important for ultrasound thermal therapy.

Intense acoustic pulses generation, cavitation, laser generated nonlinear pulses.


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