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A finite element model to predict the ablation depth in pulsed laser ablation

DSpace at IIT Bombay

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Title A finite element model to predict the ablation depth in pulsed laser ablation
 
Creator VASANTGADKAR, NA
BHANDARKAR, UV
JOSHI, SS
 
Subject thermal-model
metal target
plasma
absorption
mechanisms
pulsed laser ablation
plasma shielding
ablation depth
surface temperature
finite element analysis
 
Description This work presents development of a two-dimensional finite element model to predict temperature distribution and ablation depth in a laser ablation process. The model considers a number of aspects of the process, which hitherto have been considered independently in the literature. The aspects considered include: temperature dependent material properties of the target material, effect of plasma shielding on the incident laser flux, and temperature dependent absorptivity and absorption coefficient of the target. It was evident that these considerations have resulted in a significant improvement in the ability of the model to predict the ablation depth. Finally, the predicted ablation depth was found to match extremely well with experimental results at lower laser fluences, though at higher fluences there is a marginal overestimation. .
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-27T14:20:10Z
2011-12-26T12:57:24Z
2011-12-27T05:40:18Z
2011-07-27T14:20:10Z
2011-12-26T12:57:24Z
2011-12-27T05:40:18Z
2010
 
Type Article
 
Identifier THIN SOLID FILMS, 519(4), 1421-1430
0040-6090
http://dx.doi.org/10.1016/j.tsf.2010.09.016
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7246
http://hdl.handle.net/10054/7246
 
Language en