Three-Dimensional Antireflective Hemispherical Lens Covered by Nanoholes for Enhancement of Light Transmission

초록

This paper presents a hemispherical lens covered with nanoholes for enhancing light transmission. A hemispherical lens integrated with nanoholes was fabricated by an imprinting process that combines the two elastomeric components of the nanopillar-structured membrane and hemispherical cavity. The nanopillar-structured membrane and hemispherical cavity were replicated from nanoporous anodic aluminum oxide and conventional half-ball lens, respectively. The diameter, depth, and spacing of nanoholes on the hemispherical lens were 216 +/- 17, 275 +/- 17, and 320 +/- 25 nm, respectively. The intensity of white LED light transmitted through the nanohole-covered lens was 22% higher than that through a smooth pristine half-ball lens. (C) 2013 The Japan Society of Applied Physics

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