Technique for measurement of photoacoustic waves in situ with ultrasound probe beam
- 26 June 2003
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 94 (2) , 1278-1281
- https://doi.org/10.1063/1.1588361
Abstract
A method of measuring photoacoustic (PA) waves in situ is proposed and experimentally demonstrated. A focused probe ultrasonic beam passes through a sample and tags the position of the interested PA signal. The probe beam interacts with PA wave. The PA signal modulated probe beam is recorded outside the sample. Reconstruction of the original in situ PA signal is accomplished by demodulating the probe beam. The method, thus, provides a measurement system with a high signal-to-noise ratio and reduced background noise for PA wave form recording.This publication has 12 references indexed in Scilit:
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