Near threshold nucleation and growth of cavitation bubbles generated with a picosecond laser

Agrež, Vid (avtor), Mur, Jaka (avtor), Petelin, Jaka (avtor), Petkovšek, Rok (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: micro cavitation, bubble nucleation, dual threshold, shockwaves, laser induced breakdown
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: 8 str.
• Številčenje: Vol. 92, art. 106243
• PID: 20.500.12556/RUL-142960
• UDK: 532.528
• ISSN pri članku: 1350-4177
• DOI: 10.1016/j.ultsonch.2022.106243
• COBISS.SI-ID: 132471299
• Datum objave v RUL: 06.12.2022

Gradivo je del revije

• Naslov: Ultrasonics Sonochemistry
• Skrajšan naslov: Ultrason. sonochem.
• Založnik: Butterworth-Heinemann, Elsevier Science
• ISSN: 1350-4177
• COBISS.SI-ID: 707668

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: mikrokavitacija, dvojni prag, udarni valovi, lasersko povzročen preboj