Depth profile of a time-reversal focus in an elastic solid
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Aix Marseille Univ., Marseille (France)
The out-of-plane velocity component is focused on the flat surface of an isotropic solid sample using the principle of time reversal. This experiment is often reproduced in the context of nondestructive testing for imaging features near the surface of the sample. However, it is not clear how deep the focus extends into the bulk of the sample and what its profile is. In this paper, this question is answered using both numerical simulations and experimental data. The profiles of the foci are expressed in terms of the wavelengths of the dominant waves, based on the interpretation of the Lamb’s problem and the use of the diffraction limit.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1193443
- Report Number(s):
- LA-UR-14-29461; PII: S0041624X14003497
- Journal Information:
- Ultrasonics, Vol. 58, Issue C; ISSN 0041-624X
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 4 works
Citation information provided by
Web of Science
Web of Science
Time Reversal Techniques
|
book | October 2018 |
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