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Laser-Generated Scholte Waves in Floating Microparticles

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 d...

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Autores principales: Ranjan, Abhishek, Ahmad, Azeem, Ahluwalia, Balpreet Singh, Melandsø, Frank
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9961672/
https://www.ncbi.nlm.nih.gov/pubmed/36850374
http://dx.doi.org/10.3390/s23041776
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author Ranjan, Abhishek
Ahmad, Azeem
Ahluwalia, Balpreet Singh
Melandsø, Frank
author_facet Ranjan, Abhishek
Ahmad, Azeem
Ahluwalia, Balpreet Singh
Melandsø, Frank
author_sort Ranjan, Abhishek
collection PubMed
description 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.
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spelling pubmed-99616722023-02-26 Laser-Generated Scholte Waves in Floating Microparticles Ranjan, Abhishek Ahmad, Azeem Ahluwalia, Balpreet Singh Melandsø, Frank Sensors (Basel) Article 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. MDPI 2023-02-04 /pmc/articles/PMC9961672/ /pubmed/36850374 http://dx.doi.org/10.3390/s23041776 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ranjan, Abhishek
Ahmad, Azeem
Ahluwalia, Balpreet Singh
Melandsø, Frank
Laser-Generated Scholte Waves in Floating Microparticles
title Laser-Generated Scholte Waves in Floating Microparticles
title_full Laser-Generated Scholte Waves in Floating Microparticles
title_fullStr Laser-Generated Scholte Waves in Floating Microparticles
title_full_unstemmed Laser-Generated Scholte Waves in Floating Microparticles
title_short Laser-Generated Scholte Waves in Floating Microparticles
title_sort laser-generated scholte waves in floating microparticles
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9961672/
https://www.ncbi.nlm.nih.gov/pubmed/36850374
http://dx.doi.org/10.3390/s23041776
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