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2 March 1993 Holographic and grating reference structures for enhanced detection of surface acoustic waves
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Proceedings Volume 1732, Holographics International '92; (1993) https://doi.org/10.1117/12.140397
Event: Holographics International '92, 1992, London, United Kingdom
Abstract
The coherent intermodulation of the spatial phases of a stationary holographic grating with a separated traveling surface acoustic wave modulates the intensity in the resulting diffracted orders of a probing laser beam. The detected signal in the m equals 0 and higher diffracted orders contains information about both the stationary and traveling grating structures. For the `tuned' condition, where both grating periods are nearly the same, the detected intensity modulation is at the same frequency as the surface acoustic wave. We have analyzed this double grating interaction and discuss its inherent sensitivity and enhanced selectivity.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Truman D. Black and Don A. Larson "Holographic and grating reference structures for enhanced detection of surface acoustic waves", Proc. SPIE 1732, Holographics International '92, (2 March 1993); https://doi.org/10.1117/12.140397
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