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Laser generated surface acoustic wave using diffractive optical elements
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DOI：10.1016/j.optlaseng.2025.109325.png)
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Abstract
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• Laser induced ultrasonic surface wave generation was explored using diffractive optical element. • Using DOE a single optical source was converted into multiple sources. • The effect of number of sources, types of sources and laser power was explored on the generation efficiency of SAW waves. • Line sources had narrow bandwidth compared to point sources. • Increasing line width increased the quality factor of the signal.
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