Accession Number : ADA185071
Title : Full Field Visualization of Surface and Bulk Acoustic Waves Using Heterodyne Holographic Interferometry.
Descriptive Note : Annual summary rept. 1 Dec 86-15 Sep 87,
Corporate Author : JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF MATERIALS SCIENCE AND ENGINEERING
Personal Author(s) : Wagner, James W ; Green, Robert E , Jr
PDF Url : ADA185071
Report Date : 15 Sep 1987
Pagination or Media Count : 11
Abstract : The objective of this research has been to apply optical holographic techniques coupled with electronic signal and image processing to provide quantitative, full field measurements of acoustic wave disturbances. This program has sought to establish the limits of sensitivity with which surface acoustic waves might be measured and mapped. In addition, an effort to extend heterodyne holographic measurements to the examination of acoustic energy flow in optically transparent bulk materials has begun.
Descriptors : *SURFACE ACOUSTIC WAVES, *ACOUSTOOPTICS, *HOLOGRAMS, IMAGE PROCESSING, ACOUSTIC WAVES, HETERODYNING, OPTICAL INTERFEROMETERS, INTERFEROMETRY
Subject Categories : Line, Surface and Bulk Acoustic Wave Devices
Acoustic Detection and Detectors
Acoustooptic and Optoacoustic Devices
Distribution Statement : APPROVED FOR PUBLIC RELEASE