Project 19-07-00070 “Backward acoustic waves in multilayered structures based on piezoelectrics and piezosemiconductors“ Backward acoustic waves are characterized by oppositely directed phase and group velocities. In recent years, these waves have attracted the attention of researchers in connection with the implementation of a new type of acoustic sensors or signal processing devices on their basis. … Continue reading Project “Backward acoustic waves in multilayered structures based on piezoelectrics and piezosemiconductors”