Xie Xiaofan, Li Yunfei, Wang Gong, Bai Zhenxu, Yu Yu, Wang Yulei, Ding Yu, Lu Zhiwei
Center for Advanced Laser Technology, Hebei University of Technology, Tianjin 300401, China.
Hebei Key Laboratory of Advanced Laser Technology and Equipment, Tianjin 300401, China.
Micromachines (Basel). 2022 Jul 8;13(7):1084. doi: 10.3390/mi13071084.
The anti-reflection properties of hard material surfaces are of great significance in the fields of infrared imaging, optoelectronic devices, and aerospace. Femtosecond laser processing has drawn a lot of attentions in the field of optics as an innovative, efficient, and green micro-nano processing method. The anti-reflection surface prepared on hard materials by femtosecond laser processing technology has good anti-reflection properties under a broad spectrum with all angles, effectively suppresses reflection, and improves light transmittance/absorption. In this review, the recent advances on femtosecond laser processing of anti-reflection surfaces on hard materials are summarized. The principle of anti-reflection structure and the selection of anti-reflection materials in different applications are elaborated upon. Finally, the limitations and challenges of the current anti-reflection surface are discussed, and the future development trend of the anti-reflection surface are prospected.
硬质材料表面的减反射特性在红外成像、光电器件及航空航天等领域具有重要意义。飞秒激光加工作为一种创新、高效且绿色的微纳加工方法，在光学领域备受关注。采用飞秒激光加工技术在硬质材料上制备的减反射表面在宽光谱、全角度下具有良好的减反射性能，能有效抑制反射并提高光透射率/吸收率。本文综述了飞秒激光加工硬质材料减反射表面的研究进展，阐述了不同应用中减反射结构的原理及减反射材料的选择。最后，讨论了当前减反射表面的局限性与挑战，并对其未来发展趋势进行了展望。
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