Affiliation:
1. Department of Physics and Technology, UiT The Arctic University of Norway, 9037 Tromsø, Norway
Abstract
This study aims to demonstrate the generation and detection of Scholte waves inside polystyrene microparticles. This was proven using both experimental analysis and COMSOL simulation. Microspheres of different sizes were excited optically with a pulsed laser (532 nm), and the acoustic signals were detected using a transducer (40 MHz). On analyzing the laser-generated ultrasound signals, the results obtained experimentally and from COMSOL are in close agreement both in the time and frequency domain. A simplified analysis of Scholte wave generation by laser irradiation for homogeneous, isotropic microspheres is presented. The theoretical wave velocity of the Scholte wave was calculated and found close to our experimental results. A representation of pressure wave motion showing the Scholte wave generation is presented at different times.
Subject
Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry
Reference34 articles.
1. Hutchins, D. (1988). Physical Acoustics, Elsevier.
2. Laser generation and detection of surface acoustic waves: Elastic properties of surface layers;Neubrand;J. Appl. Phys.,1992
3. Review on practical photoacoustic microscopy;Jeon;Photoacoustics,2019
4. Yao, J., and Wang, L.V. Photoacoustic microscopy. Laser Photonics Rev., 2013. 7, 758–778.
5. Wideband high-frequency line-focus PVDF transducer for materials characterization;Zou;Ultrasonics,2003
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