Noncollinear three-phonon interactions in a multimode structure
- 1 May 1974
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 45 (5) , 1934-1936
- https://doi.org/10.1063/1.1663524
Abstract
Excitation of Lamb waves in the five lowest-order modes is demonstrated on polarized plates of PZT by using interdigital transducers. It is shown that in this structure the nonlinear interaction of noncollinear phonons can produce sum- and difference-frequency beams at arbitrary angles. This is accomplished by interacting waves propagating in various combinations of the many available Lamb modes and by selecting frequencies and wave vectors that satisfy energy and momentum conservation. The phenomena described may have applications to acoustic signal processing.This publication has 10 references indexed in Scilit:
- Convolution and Correlation Using Nonlinear Interactions of Lamb WavesIEEE Transactions on Sonics and Ultrasonics, 1973
- Bonded acoustic-surface-wave transducersElectronics Letters, 1973
- Signal Processing by Parametric Interactions in Delay-Line DevicesIEEE Transactions on Sonics and Ultrasonics, 1973
- Ferroelectric Nonlinearities in Transducer CeramicsIEEE Transactions on Sonics and Ultrasonics, 1973
- Steering acoustic surface waves by nonlinear mixingApplied Physics Letters, 1972
- Possibility of Switching and Steering Surface Waves by Nonlinear Mixing in Anisotropic MediaJournal of Applied Physics, 1972
- Detection of Surface-Wave Three-Phonon InteractionApplied Physics Letters, 1971
- Parametric beam-steering technique for acoustic waves with applications to signal processingElectronics Letters, 1971
- Piezoelectric transducer materialsProceedings of the IEEE, 1965
- Ultrasonic Study of Three-Phonon Interactions. II. Experimental ResultsPhysical Review B, 1964