Ultra high frequency imaging acoustic microscope
An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.
- Research Organization:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC07-05ID14517
- Assignee:
- Battelle Energy Alliance, LLC (Idaho Falls, ID)
- Patent Number(s):
- 7,050,174
- Application Number:
- 11/146,576
- OSTI ID:
- 1175755
- Country of Publication:
- United States
- Language:
- English
UHF acoustic microscopic imaging of resonator motion
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conference | January 2000 |
Direct imaging of traveling Lamb waves in plates using photorefractive dynamic holography
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journal | November 1999 |
Ultrasonic imaging of subsurface objects using photorefractive dynamic holography
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conference | November 2001 |
Imaging laser ultrasonics measurement of the elastodynamic properties of paper
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conference | January 2001 |
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