Interferometric measurement of acoustic velocity in PbMoO4 and TeO2.
We present a novel interferometric technique for the accurate measurement of acoustic velocity based on an optical phase shifter consisting of a pair of properly aligned acousto-optic modulators (AOMs). Results for the z-axis longitudinal mode velocities in lead molybdate (PbMoO(4)) and tellurium dioxide (TeO(2)) at 80 MHz are reported and compared with earlier results. A longstanding inconsistency in the PbMoO(4) velocity is resolved.
Vernaleken
Andreas
A
Physikalisches Institut, Universität Würzburg, Am Hubland, 97074 Würzburg, Germany. Andreas.Vernaleken@stud-mail.uni-wuerzburg.de
Cohen
Martin G
MG
Metcalf
Harold
H