The Influence Of Laser Pulse Duration On Periodic Surface Structures On Stainless Steel

Laser-induced periodic surface structures (LIPSS) are highly periodic wavy surface features which can be generated with deposition of a polarized radiation on almost any material. Usually, research focuses mainly on structures obtained with one specified pulse duration. In this study LIPSS formed on electropolished stainless steel under irradiation of nano-, pico- and femto-second pulse duration time were compared. The surface morphology of samples was determined by atomic force microscopy and optical microscopy. The chemical composition of surfaces was examined using energy-dispersive X-ray spectroscopy.