Polymeric, electrically tunable diffraction grating based on artificial muscles
- 9 August 2006
- journal article
- research article
- Published by Optica Publishing Group in Optics Letters
- Vol. 31 (17), 2610-2612
- https://doi.org/10.1364/ol.31.002610
Abstract
We demonstrate a low-cost, electrically tunable diffraction grating that is driven by a dielectric elastomer actuator. The angular tuning range of the polymer-based device is up to for the first diffracted order. The achievable grating period change of 32% is an improvement by more than a factor of 150 compared with existing analog tunable diffraction gratings based on hard materials. We show that in combination with a white light source, the presented diffraction grating can be used as a wavelength-adjustable luminous source. Such an illuminant has a potential application in inexpensive color displays that could reproduce all perceivable colors.
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