Direct fabrication of rotational femtosecond laser-induced periodic surface structure on a tilted stainless steel surface

• Published in: Optics and laser technology Vol. 134; p. 106648
• Main Authors: Liu, Yi-Hsien, Tseng, Yu-Kai, Cheng, Chung-Wei
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.02.2021; Elsevier BV
• Subjects: Femtosecond laser; Laser applications; Laser beams; Laser-induced periodic surface structure; Lasers; LIPSS; LSFL; Scanning; Stainless steel; Stainless steels; Surface structure; Femtosecond laser; LIPSS; Laser-induced periodic surface structure; LSFL
• ISSN: 0030-3992; 1879-2545
• DOI: 10.1016/j.optlastec.2020.106648

•The s-polarized laser beam induces the rotation of LSFL on the tilted sample.•Two-dimensional structures fabricated by only changing the scanning strategy.•Reasons for the rotation of LSFL on tilted surfaces were presented. This study investigated laser-induced periodic surface structures (LIPSS) produced on a tilted stainless steel surface with a p- and s-polarized laser beam. Different types of LIPSS on the tilted surface were compared, and the direct fabrication of one-dimensional rotational low spatial frequency LIPSS (LSFL) on a tilted surface using a stationary s-polarized laser beam was demonstrated. In addition, by changing the laser scanning strategy, an area pattern covered with lightning-like structures and even the two-dimensional structures fabricated on the tilted surface we demonstrated. The evolution of LSFL at different line scanning regions was obtained, and the possible reason for the rotation of LSFL on tilted surfaces was presented.