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

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

两束飞秒激光束通过柱面透镜干涉，在熔融石英上产生大面积平直、规则的周期性表面结构
シリンドリカルレンズを介した2つのフェムト秒レーザービームの干渉によって溶融シリカ上に生成された大面積の真っ直ぐな規則的な周期的表面構造
원통형 렌즈를 통한 두 개의 펨토초 레이저 빔의 간섭에 의해 용융 실리카에 생성된 대면적 직선의 규칙적인 주기 표면 구조
Estructuras superficiales periódicas regulares y rectas de gran área producidas en sílice fundida por la interferencia de dos haces láser de femtosegundos a través de una lente cilíndrica
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Прямые, регулярные периодические поверхностные структуры большой площади, полученные на плавленом кварце путем интерференции двух фемтосекундных лазерных лучей через цилиндрическую линзу

Long Chen 陈龙 ¹ ², Kaiqiang Cao 曹凯强 ¹, Yanli Li 李艳丽 ¹, Jukun Liu 刘聚坤 ¹, Shian Zhang 张诗按 ¹, Donghai Feng 冯东海 ¹, Zhenrong Sun 孙真荣 ¹, Tianqing Jia 贾天卿 ¹ ²

¹ State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
中国上海华东师范大学物理与电子科学学院精密光谱科学与技术国家重点实验室
² Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
中国太原山西省极端光学协同创新中心

https://doi.org/10.29026/oea.2021.200036

https://www.oejournal.org/article/doi/10.29026/oea.2021.200036

Opto-Electronic Advances, 25 December 2021

Abstract

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 scanning 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.

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