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Large-area straight, regular periodic surface structures produced on fused silica by the interference of two femtosecond laser beams through cylindrical lens

Long Chen, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China, Kaiqiang Cao, Yanli Li, Jukun Liu, Shian Zhang, Donghai Feng, Zhenrong Sun, Tianqing Jia, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
2021 Opto-Electronic Advances  

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Inhomogeneity and low efficiency are two important factors that limit the application of laser-induced periodic surface structures (LIPSSs), especially on glass surfaces. In this study, two-beam interference (TBI) of femtosecond lasers was used to produce large-area straight LIPSSs on fused silica using cylindrical lenses. Compared with those produced using a single circular or cylindrical lens, the LIPSSs produced by TBI are much straighter and more regular. Depending on the laser fluence and
more » ... canning velocity, LIPSSs with grating-like or spaced LIPSSs are produced on the fused silica surface. Their structural colors are blue, green, and red, and only green and red, respectively. Grating-like LIPSS patterns oriented in different directions are obtained and exhibit bright and vivid colors, indicating potential applications in surface coloring and anti-counterfeiting logos.
doi:10.29026/oea.2021.200036 fatcat:5tpqulatqjhdzimhhek7mn6zie
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Long Chen, State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China, Kaiqiang Cao, Yanli Li, Jukun Liu, Shian Zhang, Donghai Feng, Zhenrong Sun, Tianqing Jia, Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China. "Large-area straight, regular periodic surface structures produced on fused silica by the interference of two femtosecond laser beams through cylindrical lens." Opto-Electronic Advances 4.12 (2021) 200036-200036