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Laser Acoustic Microstructure Analysis at the Micron and Nanometer Length Scale

Conference ·
OSTI ID:911306
Laser acoustic approaches to investigating the interaction of elastic waves with microstructure in materials is presented that probe both the micron and nanometer length scales. At the micron length scale, a full-field imaging approach is described that provides quantitative measurement of amplitude and phase of the out-of-plane acoustical motion at GHz frequencies. Specific lateral acoustic modes can be identified in addition to the primary thickness mode with spatial resolution sufficient to image wavelengths as small as 4.5 microns.
Research Organization:
Idaho National Laboratory (INL)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC07-99ID13727
OSTI ID:
911306
Report Number(s):
INEEL/CON-02-00682
Country of Publication:
United States
Language:
English

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