Pulsed laser ablation of binary compounds

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Pulsed laser ablation of binary compounds : Effect of time delay in component evaporation on ablation plume expansion. / Morozov, A. A.; Starinskiy, S. V.; Bulgakov, A. V.

In: Journal of Physics D: Applied Physics, Vol. 54, No. 17, 175203, 29.04.2021.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{dea5f7dee5424564bc03df903e9e7e88,

title = "Pulsed laser ablation of binary compounds: Effect of time delay in component evaporation on ablation plume expansion",

abstract = "Pulsed laser ablation of compound materials often occurs with delayed evaporation of a less volatile component; however, the effect of the delay on ablation plume expansion remains virtually unexplored. Here, we have performed an experimental and theoretical study of the delayed evaporation effect using an example of a plume produced by nanosecond laser ablation of a gold-silver alloy in a vacuum and comparing it with ablation of pure gold and silver targets. The plume expansion dynamics are investigated by time-of-flight (TOF) mass spectrometry and direct simulation Monte Carlo (DSMC), 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, especially for the less volatile gold, is demonstrated and the main collisional processes governing the two-component plume expansion under the conditions of delayed evaporation are revealed. Based on comparison of experimental and DSMC data, the delay of the gold evaporation onset is estimated as approximately 0.6 ns. The delayed evaporation is therefore an important factor for correct interpretation of TOF measurements in ablation plumes with components of different volatilities. ",

keywords = "delayed evaporation, direct simulation Monte Carlo, gold silver alloy, laser ablation plume, mass spectrometry, material volatility, time-of-flight distributions",

author = "Morozov, {A. A.} and Starinskiy, {S. V.} and Bulgakov, {A. V.}",

year = "2021",

month = apr,

day = "29",

doi = "10.1088/1361-6463/abdb6c",

language = "English",

volume = "54",

journal = "Journal Physics D: Applied Physics",

issn = "0022-3727",

publisher = "IOP Publishing Ltd.",

number = "17",

}

RIS

TY - JOUR

T1 - Pulsed laser ablation of binary compounds

T2 - Effect of time delay in component evaporation on ablation plume expansion

AU - Morozov, A. A.

AU - Starinskiy, S. V.

AU - Bulgakov, A. V.

PY - 2021/4/29

Y1 - 2021/4/29

N2 - Pulsed laser ablation of compound materials often occurs with delayed evaporation of a less volatile component; however, the effect of the delay on ablation plume expansion remains virtually unexplored. Here, we have performed an experimental and theoretical study of the delayed evaporation effect using an example of a plume produced by nanosecond laser ablation of a gold-silver alloy in a vacuum and comparing it with ablation of pure gold and silver targets. The plume expansion dynamics are investigated by time-of-flight (TOF) mass spectrometry and direct simulation Monte Carlo (DSMC), 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, especially for the less volatile gold, is demonstrated and the main collisional processes governing the two-component plume expansion under the conditions of delayed evaporation are revealed. Based on comparison of experimental and DSMC data, the delay of the gold evaporation onset is estimated as approximately 0.6 ns. The delayed evaporation is therefore an important factor for correct interpretation of TOF measurements in ablation plumes with components of different volatilities.

AB - Pulsed laser ablation of compound materials often occurs with delayed evaporation of a less volatile component; however, the effect of the delay on ablation plume expansion remains virtually unexplored. Here, we have performed an experimental and theoretical study of the delayed evaporation effect using an example of a plume produced by nanosecond laser ablation of a gold-silver alloy in a vacuum and comparing it with ablation of pure gold and silver targets. The plume expansion dynamics are investigated by time-of-flight (TOF) mass spectrometry and direct simulation Monte Carlo (DSMC), 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, especially for the less volatile gold, is demonstrated and the main collisional processes governing the two-component plume expansion under the conditions of delayed evaporation are revealed. Based on comparison of experimental and DSMC data, the delay of the gold evaporation onset is estimated as approximately 0.6 ns. The delayed evaporation is therefore an important factor for correct interpretation of TOF measurements in ablation plumes with components of different volatilities.

KW - delayed evaporation

KW - direct simulation Monte Carlo

KW - gold silver alloy

KW - laser ablation plume

KW - mass spectrometry

KW - material volatility

KW - time-of-flight distributions

UR - http://www.scopus.com/inward/record.url?scp=85101740128&partnerID=8YFLogxK

U2 - 10.1088/1361-6463/abdb6c

DO - 10.1088/1361-6463/abdb6c

M3 - Article

AN - SCOPUS:85101740128

VL - 54

JO - Journal Physics D: Applied Physics

JF - Journal Physics D: Applied Physics

SN - 0022-3727

IS - 17

M1 - 175203

ER -

ID: 28081122

Pulsed laser ablation of binary compounds: Effect of time delay in component evaporation on ablation plume expansion

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