Abstract
We investigate the femtosecond laser–matter interaction for a tungsten carbide with 10% of cobalt. A femtosecond laser (1030 nm) with a pulse duration of 400 fs was used. For cumulated fluences between 1.4 and ${4}\;{\rm J/cm^2}$, laser-induced periodic surface structures (LIPSS) could be produced with a low ablation rate. LIPSS had a spatial period of 665 nm and an amplitude of 225 nm. The athermal ablation threshold fluence ranged from 0.35 to ${11}\;{\rm J/cm^2}$ in cumulated fluence for a range between 1 and 100 pulses. Thus, dimples could be fabricated without any thermal effects. In addition, the incubation coefficient and optical penetration depth of tungsten carbide were determined. They were equal to 0.79 and 19 nm, respectively.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Haruki Kawaguchi, Ryo Yasuhara, Haotian Yang, Chika Hori, Reina Miyagawa, Koji Sugioka, Masato Ota, and Hiyori Uehara
Opt. Mater. Express 14(2) 424-434 (2024)
Paulina Segovia, Abraham Wong, Ricardo Santillan, Marco Camacho-Lopez, and Santiago Camacho-Lopez
Opt. Mater. Express 11(9) 2892-2906 (2021)
Dongkai Chu, Weizhen Li, Shuoshuo Qu, Xinran Dong, and Peng Yao
Appl. Opt. 60(35) 10802-10806 (2021)