The influence of laser pulse duration on periodic surface structures on stainless steel

Abstract

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, re-search 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 en-ergy-dispersive X-ray spectroscopy.