Femtosecond laser ablation profile near an interface: Analysis based on the correlation with superficial properties of individual materials

▶ Ultrashort laser ablation behavior in a interface between two solid media represents new challenges in the field. ▶ Laser ablation through interfaces of two materials was understood using ablation characteristics of each individual material. ▶ Once one understands the threshold behavior for ablation, the variations on the geometry of ablated region at the interface can be predicted. ▶ The size of ablation discontinuity at interface is dominated by the difference on the optical properties of the two mediun. ▶ This procedure can be applied for understanding ablation geometry on structured materials.