Steering acoustic surface waves by nonlinear mixing
- 1 October 1972
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 21 (7), 323-325
- https://doi.org/10.1063/1.1654396
Abstract
We report the generation of difference‐frequency acoustic surface waves by the nonlinear interaction of intersecting noncollinear surface‐wave beams on [111]‐cut bismuth germanium oxide, a material of suitable anisotropy. The wave vector of the mixed‐frequency beam can be steered over a range of angles by varying the frequency ratio of the input beams. Agreement with a coupled‐mode theory is found. It is pointed out that the effect makes a number of new surface‐wave devices possible.Keywords
This publication has 7 references indexed in Scilit:
- Possibility of Switching and Steering Surface Waves by Nonlinear Mixing in Anisotropic MediaJournal of Applied Physics, 1972
- Mixing of Noncollinear Elastic Surface Waves on LiNbO3Journal of Applied Physics, 1971
- Nondestructive Testing of Thin Films by Harmonic Generation of Dispersive Rayleigh WavesApplied Physics Letters, 1971
- Detection of Surface-Wave Three-Phonon InteractionApplied Physics Letters, 1971
- Parametric beam-steering technique for acoustic waves with applications to signal processingElectronics Letters, 1971
- Evaluation of new single crystal piezoelectric materials for surface acoustic-wave applicationsUltrasonics, 1970
- Propagation of Piezoelectric Surface Waves on Cubic and Hexagonal CrystalsJournal of Applied Physics, 1970