Journal
OPTICS LETTERS
Volume 36, Issue 8, Pages 1389-1391Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.36.001389
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Funding
- InnoNet initiative of the German Federal Ministry of Economics and Technology [16Ino399]
- WING initiative of the German Federal Ministry of Education and Research [NMP/03X5511]
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This Letter reports on new methods and a consistent model for voltage tunable optical transmission gratings. Elastomeric gratings were molded from holographically written surface relief gratings in an azobenzene sol-gel material. These were placed on top of a transparent electroactive elastomeric substrate. Two different electro-active substrate elastomers were employed, with a large range of prestretches. A novel finite-deformation theory was found to match the device response excellently, without fitting parameters. The results clearly show that the grating underwent pure-shear deformation, and more surprisingly, that the mechanical properties of the electro-active substrate did not affect device actuation. (C) 2011 Optical Society of America
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