SOME RECENT ADVANCES IN MICROWAVE PHONON GENERATION AND DETECTION WITH APPLICATIONS TO THE STUDY OF PHONON-LATTICE INTERACTIONS IN DIELECTRIC MATERIALS.
Final rept. for Jul 61-Oct 64,
WESTINGHOUSE RESEARCH LABS PITTSBURGH PA
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Some recent advances in phonon generation and detection in the gigacycle region are described. The technique, as applied to quartz, has been extended to non-piezoelectric materials by the use of vapor deposited thin film piezoelectric transducers. Attenuation measurements in quartz, MgO, TiO2 and Al2O3 are described and discussed. A theory for the behavior of attenuation as a function of temperature is also given. Author