Optimization of Sound Pulse Generation for Photoacoustic Sensing Applications

Date
1992
Authors
Oksanen, Markku
Wu, Junru
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Altmetrics
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Abstract

Photoacoustically generated sound pulses are currently used in various NDT, NDE and sensing applications, often because this method generates ultrasound without touching the sample. The generation mechanisms are relatively well known, including directional patterns, sound pressures and damage thresholds for the laser intensity. Our study addresses the optimal conditions for sound generation for sensing purposes in a liquid using a low power diode pumped Nd:YAG pulse laser.

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