Passive cavitation images (PCIs) generated from scattered acoustic waves are a potential technique for monitoring lesion formation during high-intensity focused ultrasound (HIFU) thermal ablation. HIFU lesion prediction by PCIs was assessed in ex vivo bovine liver samples (N=14) during 30-s sonications with 1.1-MHz continuous-wave ultrasound (1989 W/cm^2 estimated spatial-peak intensity). Treat...

The problem of propagation of plane wave including body and surface waves propagating in a transversely isotropic half-space with a depth-wise axis of material symmetry is investigated in details. Using the advantage of representation of displacement fields in terms of two complete scalar potential functions, the coupled equations of motion are uncoupled and reduced to two independent equations...

The detection and evaluation of closed cracks are prime interest in industry. Whereas conventional ultrasonic methods fail to detect these defects, nonlinear based on activation the behavior constitute an interesting alternative. aim this article is give a better understanding interactions between longitudinal elastic wave for quantitative investigation into signatures. Using 1D approach litera...

Excitation of high-phase-speed Dyakonov surface waves guided by a surface-relief grating made uniaxial dielectric material was theoretically studied using the rigorous coupled-wave approach for illumination p - and/or s -polarized plane waves. The absorptance at fixed value f...

Offset plane wave migration and common-azimuth migration are among the most promising wave-equation migration methods for efficiently imaging 3-D marine data sets. Offset plane wave migration has some computational advantages over common-azimuth migration, but common-azimuth is more accurate. Sub-salt images produced by commonazimuth migration are better focused than the corresponding images pr...

Harmonic generation in the scattered fields produced by a dielectric sphere coated with time-varying conductive shell is studied using Mie theory approach hybridized conversion matrix methods. Analytic results are derived for plane wave incidence as well general external excitation transition techniques. An equivalent transmission line also discussed. Numerical examples validate expressions thr...