Evidence of laser-induced nanobubble formation mechanism in water
Principles of laser-induced nanobubble formation in water are studied and presented. Nanobubbles were generated by laser light at intensities below threshold for laser-induced breakdown and subsequently expanded by a rarefaction wave to facilitate their observation and analysis. Different methods we...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417723002493 |
| _version_ | 1827884699729526784 |
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| author | Miha Jelenčič Uroš Orthaber Jaka Mur Jaka Petelin Rok Petkovšek |
| author_facet | Miha Jelenčič Uroš Orthaber Jaka Mur Jaka Petelin Rok Petkovšek |
| author_sort | Miha Jelenčič |
| collection | DOAJ |
| description | Principles of laser-induced nanobubble formation in water are studied and presented. Nanobubbles were generated by laser light at intensities below threshold for laser-induced breakdown and subsequently expanded by a rarefaction wave to facilitate their observation and analysis. Different methods were used to study nanobubble formation and characteristics. Firstly, probability of nanobubble formation as a function of water sample purity was examined. Secondly, relation between laser fluence at different wavelengths and the number of generated nanobubbles was investigated. Thirdly, measurements of nanobubble lifetime were conducted indicating a contradiction to the Epstein-Plesset equation-based prediction of free bubble dissociation. Accumulated evidence suggests that the presence of physical impurities is a prerequisite for nanobubble formation. Consequently, a lack of impurities results in the absence of nanobubbles in contrast to assumptions by existing studies. The findings presented in this paper provide new insights into the fundamental properties of laser-induced nanobubbles in water. |
| first_indexed | 2024-03-12T19:32:51Z |
| format | Article |
| id | doaj.art-b8340802fc5b46e9bf6abe916165bc36 |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-03-12T19:32:51Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-b8340802fc5b46e9bf6abe916165bc362023-08-02T04:24:02ZengElsevierUltrasonics Sonochemistry1350-41772023-10-0199106537Evidence of laser-induced nanobubble formation mechanism in waterMiha Jelenčič0Uroš Orthaber1Jaka Mur2Jaka Petelin3Rok Petkovšek4University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva cesta 6, SI-1000 Ljubljana, SloveniaUniversity of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva cesta 6, SI-1000 Ljubljana, SloveniaUniversity of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva cesta 6, SI-1000 Ljubljana, SloveniaUniversity of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva cesta 6, SI-1000 Ljubljana, SloveniaCorresponding author.; University of Ljubljana, Faculty of Mechanical Engineering, Aškerčeva cesta 6, SI-1000 Ljubljana, SloveniaPrinciples of laser-induced nanobubble formation in water are studied and presented. Nanobubbles were generated by laser light at intensities below threshold for laser-induced breakdown and subsequently expanded by a rarefaction wave to facilitate their observation and analysis. Different methods were used to study nanobubble formation and characteristics. Firstly, probability of nanobubble formation as a function of water sample purity was examined. Secondly, relation between laser fluence at different wavelengths and the number of generated nanobubbles was investigated. Thirdly, measurements of nanobubble lifetime were conducted indicating a contradiction to the Epstein-Plesset equation-based prediction of free bubble dissociation. Accumulated evidence suggests that the presence of physical impurities is a prerequisite for nanobubble formation. Consequently, a lack of impurities results in the absence of nanobubbles in contrast to assumptions by existing studies. The findings presented in this paper provide new insights into the fundamental properties of laser-induced nanobubbles in water.http://www.sciencedirect.com/science/article/pii/S1350417723002493Laser-induced bubblesNanobubblesBubble nucleationShock wavesEpstein-Plesset equation |
| spellingShingle | Miha Jelenčič Uroš Orthaber Jaka Mur Jaka Petelin Rok Petkovšek Evidence of laser-induced nanobubble formation mechanism in water Ultrasonics Sonochemistry Laser-induced bubbles Nanobubbles Bubble nucleation Shock waves Epstein-Plesset equation |
| title | Evidence of laser-induced nanobubble formation mechanism in water |
| title_full | Evidence of laser-induced nanobubble formation mechanism in water |
| title_fullStr | Evidence of laser-induced nanobubble formation mechanism in water |
| title_full_unstemmed | Evidence of laser-induced nanobubble formation mechanism in water |
| title_short | Evidence of laser-induced nanobubble formation mechanism in water |
| title_sort | evidence of laser induced nanobubble formation mechanism in water |
| topic | Laser-induced bubbles Nanobubbles Bubble nucleation Shock waves Epstein-Plesset equation |
| url | http://www.sciencedirect.com/science/article/pii/S1350417723002493 |
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