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Accuracy of the subsurface damage parameters calculated by the finite difference algorithm

Authors :
Wang H.
Fu G.
Xiao L.
Chen H.
Xiao H.
Source :
Journal of the European Optical Society-Rapid Publications, Vol 10, p 15056 (2015)
Publication Year :
2015
Publisher :
EDP Sciences, 2015.

Abstract

An important approach to characterize the full three-dimensional information of subsurface damage is to simulate the etching process of a sample reversely. The simulation starts from the morphology of the sample after the subsurface damage micro cracks being opened totally. During the etching experiment, it is possible for us to get the surface morphology at any moment. This paper presents a finite difference algorithm to simulate the morphology evolution during the etching process and then the surface’s morphology of the sample at a specific time can be obtained. Comparison between the simulated morphology and the measured one provides the clue of improving the precision of the finite difference algorithm. This method is kind of the fast calculation. In addition, the accuracy of this calculation of the corrosion model needs to be ensured. In order to improve the precision of calculation, the time interval should be set as the appropriate value by comparison and analysis. In this paper, the accuracy can be calculated through comparing the simulated result with the experimental result, and the maximum error of this method can be gained.

Details

Language :
English
ISSN :
19902573
Volume :
10
Database :
Directory of Open Access Journals
Journal :
Journal of the European Optical Society-Rapid Publications
Publication Type :
Academic Journal
Accession number :
edsdoj.5ba883e8227a451bb618110b1e46ee6e
Document Type :
article
Full Text :
https://doi.org/10.2971/jeos.2015.15056