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Bottom section of laser ablation graphic.

Laser ablation

Laser ablation is a leading technology for direct solid sampling in analytical chemistry. Laser ablation refers to the process in which an intense burst of energy delivered by a short laser pulse is used to sample (remove a portion of) a material. The advantages of laser ablation chemical analysis include direct characterization of solids, no chemical procedures for dissolution, reduced risk of contamination or sample loss, analysis of very small samples not separable for solution analysis, and determination of spatial distributions of elemental composition.

Shadowgraph images of the laser ablation in argon with E=30 mJ (from 0 to 30 ns).

Fundamental studies

In our research, rather than formulate a general analysis for the laser ablation process, laser ablation process is divided into several time intervals (stages) after the laser pulse and separate analyses and experiments are carried out which focused on the main mechanisms during each time interval.