Polymeric, electrically tunable diffraction grating based on artificial muscles.

@article{Aschwanden2006PolymericET,
  title={Polymeric, electrically tunable diffraction grating based on artificial muscles.},
  author={Manuel Aschwanden and Andreas Stemmer},
  journal={Optics letters},
  year={2006},
  volume={31 17},
  pages={2610-2}
}
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 118 mrad 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… CONTINUE READING
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