Article

Special Section on Applications of Laser Ablation and Micromachining

May 2005
Optical Engineering 44(5)

DOI:10.1117/1.1924394

Authors:

Laser-Induced Optical Breakdown in Solids

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Aug 2008

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Femtosecond laser ablation profile near an interface: Analysis based on the correlation with superfi...

January 2011 · Applied Surface Science

Applied Surface Science j o u r n a l h o m e p a g e : w w w . e l s e v i e r . c o m / l o c a t e / a p s u s c a b s t r a c t Femtosecond laser ablation of materials is turning to be an important tool for micromachining as well as for selective removal of biological tissues. In a great number of applications, laser ablation has to process through interfaces separating media of different ... [Show full abstract] properties. The investigation of the ablation behavior within materials and passing through interfaces is the main aim of this study. Especially, the analysis of the discontinuity in the ablation profile close to interfaces between distinct materials can reveal some of the phenomena involved in the formation of an ablated microcavity geometry. We have used a method that correlates the ablation cross sectional area with the local laser intensity. The effective intensity ablation properties were obtained from surface ablation data of distinct materials. The application of this method allows the prediction of the occurrence of a size discontinuity in the ablation geometry at the interface of distinct media, a fact which becomes important when planning applications in different media.

Special Section on Applications of Laser Ablation and Micromachining

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