Antireflective "moth-eye" structures on tunable optical silicone membranes

被引：13

作者：

Brunner, Robert ^{[1
]}

Keil, Bettina ^{[1
]}

Morhard, Christoph ^{[2
]}

Lehr, Dennis ^{[3
]}

Draheim, Jan ^{[4
]}

Wallrabe, Ulrike ^{[4
]}

Spatz, Joachim ^{[2
,5
]}

机构：

[1] Univ Appl Sci Jena, D-07745 Jena, Germany

[2] Max Planck Inst Intelligent Syst, Dept New Mat & Biosyst, D-70569 Stuttgart, Germany

[3] Univ Jena, Inst Appl Phys, D-07743 Jena, Germany

[4] Univ Freiburg, Dept Microsyst Engn IMTEK, Lab Microactuators, D-79110 Freiburg, Germany

[5] Heidelberg Univ, Dept Biophys Chem, D-69120 Heidelberg, Germany

来源：

APPLIED OPTICS | 2012年 / 51卷 / 19期

关键词：

Silicones - Lenses - Block copolymers;

D O I：

10.1364/AO.51.004370

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Flexible silicone membranes are key components for tunable optical lenses. The elastic operation of the membranes impedes the use of classical layer systems for an antireflective (AR) effect. To overcome this limitation, we equipped optical elastomer membranes with "moth-eye" structures directly in the flexible silicone substrate. The manufacturing of the AR structures in the flexible membrane includes a mastering process based on block copolymer micelle nanolithography followed by a replication method. We investigate the performance of the resulting AR structures under strain of up to 20% membrane expansion. A significant transmittance enhancement of up to 2.5% is achieved over the entire visible spectrum, which means that more than half of the surface reflection losses are compensated by the AR structures. (C) 2012 Optical Society of America

引用

页码：4370 / 4376

页数：7

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