Two-Dimensional Periodic Nanostructure Fabricated on Titanium by Femtosecond Green Laser.

ABSTRACT: Laser-induced periodic surface structures (LIPSS) is the sub-wavelength periodic nanostructure, which is generally generated by the femtosecond laser. There are two kinds of LIPSS, low spatial frequency LIPSS (LSFL) and high spatial LIPSS (HSFL), and the period size is close and less than half of the laser wavelength, respectively. Fabrication of two-dimensional (2D) LSFL and HSFL on a titanium surface with a linear-polarized femtosecond green laser beam (wavelength 515 nm) and cross-scanning strategies is demonstrated in this study. Four types of LIPSS structures are obtained by controlling the laser fluence, irradiated pulses, and cross-scanning strategies: 1D-LSFL perpendicular to laser polarization with a period of 300-360 nm, 1D-HSFL parallel to laser polarization with a period of 55-

SUBMITTER: Liu YH 

PROVIDER: S-EPMC7559322 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature