Electro-Magneto-Elastic Coupled Waves In Piezoactive Periodic Structures
WAVE DYNAMICS, MECHANICS AND PHYSICS OF MICROSTRUCTURED METAMATERIALS: THEORETICAL AND EXPERIMENTAL METHODS(2019)
摘要
Based on the complete set of Maxwell' electrodynamics equations and the theory of elasticity the two-dimensional equations have obtained describing the coupled wave process in piezoactive electro-magneto-elastic (MEE) structure and allowing solution of a new class of problems, in particular, the problems of propagation and internal resonance of electro-magneto-elastic waves in periodic MEE structures. For longitudinal lattice vibrations of oppositely polarized MEE periodic superlattice the effect of phonon-photon polariton is investigated with a full three-phase coupling between elastic, electromagnetic fields. The results show that the new coupled phonon-photon polariton exhibits properties different from piezoelectric or piezomagneticpolaritons.
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