Abstract
Coupling between the transverse electromagnetic mode of the coplanar strips and transverse acoustic phonon mode in the multilayer piezoelectric structures is considered. It is shown that it leads to the formation of a coupled entity—acoustic cavity polariton, whose frequency and velocity can be adjusted within a very broad range by the proper design of the piezoelectric cavity. The acoustic cavity polaritons can be used in filters, delay lines, and solid-state traveling wave devices for frequencies of up to 100 GHz.
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