@inproceedings{09a6a1264b4e41bdb5d3d7c116852e9b,
title = "Ultrasonic flux imaging in anisotropic solids",
abstract = "We introduce a new method for graphically imaging the elastic anisotropy of solids. Focused ultrasonic immersion transducers act as point sources and detectors. A spatial scan exhibits a pattern characteristic of the anisotropy. Caustics, related to `phonon focussing,' are broken into fringes due to interference between waves on neighboring sheets of the acoustic wave surface. Theoretical predictions for the images agree with experimental observations. We illustrate the technique here by an application to a single crystal of silicon. The new method holds promise for examining anisotropies in the vibrational properties of single crystals, textured polycrystals and composite materials. The observations may also have significant import for flaw detection in such materials.",
author = "Weaver, {Richard L} and Hauser, {Matt R.} and Wolfe, {James P.}",
year = "1993",
language = "English (US)",
isbn = "0750618779",
series = "Proceedings of the Ultrasonics International Conference",
publisher = "Publ by Butterworth-Heinemann Ltd",
pages = "535--538",
booktitle = "Proceedings of the Ultrasonics International Conference",
note = "Proceedings of the Ultrasonics International Conference ; Conference date: 06-07-1993 Through 08-07-1993",
}