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  Antireflective “moth-eye” structures on tunable optical silicone membranes

Brunner, R., Keil, B., Morhard, C., Lehr, D., Draheim, J., Wallrabe, U., et al. (2012). Antireflective “moth-eye” structures on tunable optical silicone membranes. Applied Optics, 51(19), 4370-4376. doi:10.1364/AO.51.004370.

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ApplOpt_51_2012_4370.pdf (Any fulltext), 624KB
 
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 Creators:
Brunner, Robert, Author
Keil, Bettina, Author
Morhard, Christoph1, Author           
Lehr, Dennis, Author
Draheim, Jan, Author
Wallrabe, Ulrike, Author
Spatz, Joachim P.1, 2, Author           
Affiliations:
1Cellular Biophysics, Max Planck Institute for Medical Research, Max Planck Society, ou_2364731              
2Biophysical Chemistry, Institute of Physical Chemistry, University of Heidelberg, 69120 Heidelberg, Germany, ou_persistent22              

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 Abstract: 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.

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Language(s): eng - English
 Dates: 2012-04-302012-03-152012-05-022012-06-262012-07-01
 Publication Status: Issued
 Pages: 7
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 Rev. Type: Peer
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Title: Applied Optics
Source Genre: Journal
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Publ. Info: Washington, DC : Optical Society of America
Pages: - Volume / Issue: 51 (19) Sequence Number: - Start / End Page: 4370 - 4376 Identifier: ISSN: 0003-6935
CoNE: https://pure.mpg.de/cone/journals/resource/991042728167604