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Article
Real-time Frequency-translated Holographic Visualization of SAW Interactions with Surface-breaking Defects
Optics Letters
  • James L. Blackshire, Air Force Research Lab
  • Shamachary Sathish, University of Dayton
  • Bradley D. Duncan, University of Dayton
  • Mike Millard, University of Dayton
Document Type
Article
Publication Date
1-1-2002
Abstract

A real-time, frequency-translated holographic imaging system has been developed by use of bacteriorhodopsin film. The system provides a capability for imaging surface acoustic waves and has been utilized to detect and characterize surface-breaking defects through near-field ultrasonic scattering effects. Frequency-plane filtering was used to discriminate between ultrasonic standing-wave and near-field scattering features, dramatically enhancing the holographic visualization of the defect sites. A detailed description of the system is presented, along with representative holographic images showing the interaction of surface acoustic waves with surface-breaking cracks and small notches in aluminum and titanium substrates.

Inclusive pages
1025-1027
ISBN/ISSN
0146-9592
Publisher
Optical Society of America
Peer Reviewed
Yes
Citation Information
James L. Blackshire, Shamachary Sathish, Bradley D. Duncan and Mike Millard. "Real-time Frequency-translated Holographic Visualization of SAW Interactions with Surface-breaking Defects" Optics Letters Vol. 27 Iss. 12 (2002)
Available at: http://works.bepress.com/bradley_duncan/5/