Spatiotemporal Mapping of Symmetrical Surface Acoustic Fields on Crystals and Periodic Microstructures
Abstract
Spatiotemporal acoustic field imaging on the (100) plane of the cubic crystal LiF and on a square array of gold pyramids on a glass substrate is performed with an ultrafast optical technique. In both cases wave fronts exhibiting fourfold symmetry are obtained. The results of these two experiments on naturally and artificially anisotropic materials are compared.
- Publication:
-
Topological Aspects of Critical Systems and Networks
- Pub Date:
- July 2007
- DOI:
- 10.1142/9789812708687_0035
- Bibcode:
- 2007tacs.conf..249T