کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1665789 | 1518056 | 2013 | 6 صفحه PDF | دانلود رایگان |

• Antireflective structures on fused silica are grown using a self-assembly technique.
• The properties of structures with different etching time were studied.
• The laser-induced damage threshold of glass was enhanced after etching.
• The reflection matches the theoretical simulation using a thin-film multilayer model.
Antireflective sub-wavelength structures with high laser-induced damage threshold on fused silica are fabricated using a self-assembly technique, in which a porous yttrium oxide film is deposited as a mask followed by alkaline etching. By controlling the etching time, several sub-wavelength structures with different height, density and diameter have been made. The best reflectance is less than 2.87% for wavelengths from 300 to 1000 nm after 1.5 h etching. The laser-induced damage threshold of the etched glass measured by a 10 ns Nd:YAG laser at a wavelength of 532 nm was as high as 30 J/cm2 compared to 16 J/cm2 of blank glass. The specular reflectance of structures matches the theoretical simulation using a thin-film multilayer model, and the results reveal that the shape of the structures is similar to the calculated parabolic shape. Achieving antireflective sub-wavelength structures on fused silica paves the way for applications in laser systems.
Journal: Thin Solid Films - Volume 548, 2 December 2013, Pages 103–108