Photo-acoustic imaging of surface acoustic wave slowness using multiplexed, two-wave mixing array interferometry

A method to rapidly measure the group velocities (or their inverse, slownesses) of surface acoustic waves (SAWs) in anisotropic materials is presented. Surface acoustic waves are generated using a pulsed laser focused to a point on a test object. A newly developed multiplexed two-wave mixing (MTWM)...

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Veröffentlicht in:	IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2002-08, Vol.49 (8), p.1118-1123
Hauptverfasser:	Yi Zhou, Murray, T.W., Krishnaswamy, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic arrays Acoustic imaging Acoustic measurements Acoustic signal detection Acoustic waves Acoustical measurements and instrumentation Acoustics Arrays Cross-disciplinary physics: materials science rheology Exact sciences and technology Fundamental areas of phenomenology (including applications) Group velocity Interferometry Inverse Materials science Materials testing Multiplexing Nondestructive testing: ultrasonic testing, photoacoustic testing Optical pulse generation Physics Pulsed lasers Sawing machines Saws Surface acoustic waves Two-wave mixing Velocity measurement
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