Broad-band anti-reflective pore-like sub-wavelength surface nanostructures on sapphire for optical windows

• Main Authors: Lin, Zhao-Qing, Wang, Gui-Gen, Tian, Ji-Li, Wang, Li-Yan, Zhao, Dong-Dong, Liu, Zheng, Han, Jie-Cai
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2019
• Subjects: Sub-wavelength Structure; Engineering::Materials; Sapphire
• Online Access: https://hdl.handle.net/10356/86224; http://hdl.handle.net/10220/49271
• Institution: Nanyang Technological University

Compared with conventional anti-reflective film, an anti-reflective sub-wavelength surface structure provides an ideal choice for a sapphire optical window especially in harsh environments. However, it is still a challenge to obtain a sapphire anti-reflective surface microstructure because of its hi...