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Pulsed laser ablation of binary compounds: effect of time delay in component evaporation on ablation plume expansion
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SYSNO ASEP 0541925 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Pulsed laser ablation of binary compounds: effect of time delay in component evaporation on ablation plume expansion Author(s) Morozov, A.A. (RU)
Starinskiy, S.V. (RU)
Bulgakov, Alexander (FZU-D) ORCIDNumber of authors 3 Article number 175203 Source Title Journal of Physics D-Applied Physics. - : Institute of Physics Publishing - ISSN 0022-3727
Roč. 54, č. 17 (2021)Number of pages 17 s. Language eng - English Country GB - United Kingdom Keywords laser ablation plume ; gold–silver alloy ; material volatility ; delayed evaporation ; time-of-flight distributions ; mass spectrometry ; direct simulation Monte Carlo Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EF15_003/0000445 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000618030200001 EID SCOPUS 85101740128 DOI 10.1088/1361-6463/abdb6c Annotation Pulsed las. abl. of compound materials occurs with delayed evaporation of a less volatile component, the effect of the delay on abl. plume expansion remains virtually unexplored.We have performed an experiment. and theoretic. study of the delayed evaporation effect using a plume produced by nanosec. las. abl. of a gold–silver alloy in a vacuum and comparing it with abl. of gold and silver targets.The plume expansion dynamics are investigated by time-of-flight mass spectrometry and direct simulation Monte Carlo,while the laser-induced target evaporation is analyzed using a thermal model.A dramatic effect of the delay time on the average kinetic energy of the plume particles,esp. for the less volatile gold,is demonstrated and the main collisional processes governing the two-component plume expansion under the condit. of delayed evaporation are revealed.Based on comparison of experimental and DSMC data,the delay of the gold evaporation onset is estimated as approximately 0.6ns. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1088/1361-6463/abdb6c
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