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research article

Laser Excitation of a Fracture Source for Elastic Waves

Blum, Thomas E.  
•
Van Wijk, Kasper
•
Snieder, Roel
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2011
Physical Review Letters

We show that elastic waves can be excited at a fracture inside a transparent sample by focusing laser light directly onto this fracture. The associated displacement field, measured by a laser interferometer, has pronounced waves that are diffracted at the fracture tips. We confirm that these are tip diffractions from direct excitation of the fracture by comparing them with tip diffractions from scattered elastic waves excited on the exterior of the sample. Being able to investigate fractures-in this case in an optically transparent material-via direct excitation opens the door to more detailed studies of fracture properties in general. © 2011 American Physical Society.

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Type
research article
DOI
10.1103/PhysRevLett.107.275501
Author(s)
Blum, Thomas E.  
•
Van Wijk, Kasper
•
Snieder, Roel
•
Willis, Mark E.
Date Issued

2011

Publisher

American Physical Society

Published in
Physical Review Letters
Volume

107

Issue

27

Article Number

275501

Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
GEL  
Available on Infoscience
October 30, 2015
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/120181
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