Formation of nanostructures at laser ablation under the action of ultrashort laser impulses on a surface of solid states

One of the most popular methods for producing nanostructures on solid surface is laser ablation. The experimental results of ultrashort pulses laser interaction with metals and carbon are presented. Our femtosecond laser system generates pulse trains with  mJ, pulse duration  fs and repetition rate  kHz. Under vacuum condition in chamber (pressure p=10−4 Torr) atomic vapors condensate on cold substrate surface. Scanning electron and atomic-force microscopy were used for sample investigation. The nanostructured films of nickel, titanium and carbon with the minimum characteristic size of nanostructures 30 nm are obtained.