Network Modeling of Piezoelectric Transducers for Energy Conversion

Abstract

Created by: Lin Fa and Meishan Zhao

Anomalous Refraction of Transversely Isotropic Media with Strong Anisotropy

“…While the existence and determination of anomalous reflections are theoretically substantial, their significance can be more fully realized if they are confirmed from experimental observations and applied to practical applications such as in geophysics and seismic exploration. Similar to many other cases of optical and acoustic phenomena [23][24], additional work needs to be done to fully understand their practical significance, which may further lead to productive industrial applications.…”

Acoustic Waves at the Interface Between Different Types of Anisotropic-Strata

“…Now, consider an incident P-wave from VTI to TTI medium with an incident angle (θ). For the TTI medium, Bond transformation can be used to convert its tilt-angle structure to the same tensor form of the VTI structure [24][25][26][27][28][29][30][31][32][33][34]; Kelvin-Christoffel equation can be solved for the reflected and refracted coefficients;…”

“…While an interface between likewise-media has a relatively simple geometric structure [24][25][26][27][28][29][30][31][32][33][34], the interface between unlike-media can be much more complicated [35].…”

Goos-Hänchen Effect: An Intriguing Phenomenon from Optics to Acoustics

“…It is noted that when an optical wave is propagating from a denser medium to a thinner medium, the total reflection generates coherent interference; the final propagated wave yields a lateral displacement relative to the incidence position at the interface. This optical effect is critically important in practical applications of optical interfacial-transition, e.g., slow-light processes [5], interfaced-induced superconductivity [6][7][8][9][10][11][12], material nucleation [13], nanophotonics and optic-electromagnetic applications [14][15][16][17][18], as well as many practical applications involving media interfaces in acoustics [19][20][21][22][23][24][25][26][27][28].…”