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Near threshold nucleation and growth of cavitation bubbles generated with a picosecond laser
ID
Agrež, Vid
(
Author
),
ID
Mur, Jaka
(
Author
),
ID
Petelin, Jaka
(
Author
),
ID
Petkovšek, Rok
(
Author
)
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https://www.sciencedirect.com/science/article/pii/S135041772200339X
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Abstract
The nucleation and growth of cavitation bubbles few micrometers in size in water generated by a 60 ps 515 nm fiber laser is observed and visualized near nucleation threshold. The study is performed by monitoring the plasma size, the cavitation bubble size and the emitted shock waves. The latter two aspects are supported by the Gilmore model using a Noble-Abel-stiffened-gas (NASG) equations of state. For the first time, two types of cavitation events are identified and visualized that exhibit a difference of more than two orders of magnitude in the excitation energy converted to mechanical effects with minimal change in excitation laser pulse energy. The result is localized cavitation and reduced mechanical stress on water-based media with potentially positive implications for laser treatments of biological tissue.
Language:
English
Keywords:
micro cavitation
,
bubble nucleation
,
dual threshold
,
shockwaves
,
laser induced breakdown
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2023
Number of pages:
8 str.
Numbering:
Vol. 92, art. 106243
PID:
20.500.12556/RUL-142960
UDC:
532.528
ISSN on article:
1350-4177
DOI:
10.1016/j.ultsonch.2022.106243
COBISS.SI-ID:
132471299
Publication date in RUL:
06.12.2022
Views:
610
Downloads:
391
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Record is a part of a journal
Title:
Ultrasonics Sonochemistry
Shortened title:
Ultrason. sonochem.
Publisher:
Butterworth-Heinemann, Elsevier Science
ISSN:
1350-4177
COBISS.SI-ID:
707668
Licences
License:
CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:
http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:
The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Secondary language
Language:
Slovenian
Keywords:
mikrokavitacija
,
dvojni prag
,
udarni valovi
,
lasersko povzročen preboj
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0270
Name:
Proizvodni sistemi, laserske tehnologije in spajanje materialov
Funder:
ARRS - Slovenian Research Agency
Project number:
L2-3171
Name:
Generacija ultrakratkih laserskih pulzov za zelo hitro in visoko prilagodljivo vzporedno mikroprocesiranje
Funder:
ARRS - Slovenian Research Agency
Project number:
J2-3057
Name:
Kontrolirano generiranje mikromehurčkov in raziskave njihove fizike za uporabo v kemiji, biologiji in medicini
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