Burst laser ablation in distilled and heavy water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F24%3A43973740" target="_blank" >RIV/49777513:23640/24:43973740 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11025/57984" target="_blank" >http://hdl.handle.net/11025/57984</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.procir.2024.08.218" target="_blank" >10.1016/j.procir.2024.08.218</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Burst laser ablation in distilled and heavy water

Popis výsledku v původním jazyce

The laser water ablation initiates several physical effects: ionization of atoms and optical breakdown of the liquid, phase explosion and cavitation, shockwave propagation, and even the potential to yield neutrons. The goal of this paper is to compare ablation plasma glow and thermal changes in distilled and heavy water under single pulses and bursts of ultrashort laser pulses. The laser ablation was performed beneath the water surface in a circular laser scanned trajectory. There were two regimes of water ablation: burst regime and single pulses ablation. The absorption processes and ablation plasma glow were evaluated with visible and infrared cameras, fast silicon detector and thermocouple. The study revealed that the heavy water ablation process is 3.5 times more intense in the burst regime with the same laser power. Unexpectedly, the plasma glow with a lower power density of laser 2.6ꞏ1013 W/cm2 was four times higher than with higher power density of 8ꞏ1013 W/cm2. In burst mode and at a higher power density, heavy water produced nearly two times higher plasma glow.

Název v anglickém jazyce

Burst laser ablation in distilled and heavy water

Popis výsledku anglicky

The laser water ablation initiates several physical effects: ionization of atoms and optical breakdown of the liquid, phase explosion and cavitation, shockwave propagation, and even the potential to yield neutrons. The goal of this paper is to compare ablation plasma glow and thermal changes in distilled and heavy water under single pulses and bursts of ultrashort laser pulses. The laser ablation was performed beneath the water surface in a circular laser scanned trajectory. There were two regimes of water ablation: burst regime and single pulses ablation. The absorption processes and ablation plasma glow were evaluated with visible and infrared cameras, fast silicon detector and thermocouple. The study revealed that the heavy water ablation process is 3.5 times more intense in the burst regime with the same laser power. Unexpectedly, the plasma glow with a lower power density of laser 2.6ꞏ1013 W/cm2 was four times higher than with higher power density of 8ꞏ1013 W/cm2. In burst mode and at a higher power density, heavy water produced nearly two times higher plasma glow.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/EH22_008%2F0004634" target="_blank" >EH22_008/0004634: Strojní inženýrství biologických a bioinspirovaných systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Procedia CIRP

ISBN

—

ISSN

2212-8271

e-ISSN

—

Počet stran výsledku

4

Strana od-do

755-758

Název nakladatele

Elsevier B.V.

Místo vydání

Fürth

Místo konání akce

Fürth, Germany

Datum konání akce

15. 9. 2024

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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