Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1679903 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2015 | 6 Pages |
Abstract
Broadband low reflectance materials have various applications in the field of optical energy management; however, materials with ultra-low reflectance (below 0.1%) have been considered as mechanically delicate. We have developed a novel hard-surface optical absorber with microstructured, diamond-like carbon coated ion tracks on CR-39 plastic substrate. The spectral reflectance of the first prototype was below 2% for wavelengths ranging from 400Â nm to 1400Â nm; moreover, the optical absorber had mechanically hard surface and exhibited temporal durability. Choosing the appropriate design of the surface structure and coating layer is likely to reduce the reflectance to the order of 0.1%. This technique yields easy-to-handle broadband ultra-low reflectance absorbers.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Kuniaki Amemiya, Hiroshi Koshikawa, Tetsuya Yamaki, Yasunari Maekawa, Hiroshi Shitomi, Takayuki Numata, Kenichi Kinoshita, Minoru Tanabe, Daiji Fukuda,