Hossein M. Shodja
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The multiphysics process of the electromagnetic (EM) radiation induced from an embedded nanofiber scatterer subjected to SH-waves is of interest. By discarding the commonly employed electroquasistatic approximation, the fully-coupled elastodynamics and Maxwell’s equations have been solved simultaneously within the mathematical framework of piezoelectric surface elasticity theory. Certain subtleties regarding the introduced interface characteristic lengths that make the examination of the size effect on the EM radiated power, scattering cross section, fundamental resonance frequency, and distribution of the magnetic field possible will be discussed. The obtained results can be helpful for designing electrically small antennas, sensors, and resonators using piezoelectric nanofibers.
Illustration of a nano-sized piezoelectric fiber embedded in an infinite piezoelectric matrix subjected to an incident anti-plane shear wave.
Fully-coupled electrodynamics, Embedded piezoelectric nanofiber, Electromagnetic radiation, Interface effect