A novel approach to tunable diffractive transmission gratings based on dielectric elastomer actuators

Matthias Kollosche; Sebastian Döring; Guggi Kofod; Joachim Stumpe

doi:10.1117/12.847533

9 April 2010 A novel approach to tunable diffractive transmission gratings based on dielectric elastomer actuators

Matthias Kollosche, Sebastian Döring, Guggi Kofod, Joachim Stumpe

Proceedings Volume 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010; 76422Y (2010) https://doi.org/10.1117/12.847533
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Dielectric elastomer actuators (DEA) of poly-styrene-ethylene-butadiene-styrene (SEBS) and commonly used VHB4910 tape were studied for voltage tunable optical transmission gratings. A new geometry is proposed, in which the grating is placed in an area without electrodes, permitting for light transmission through the device. Experiments were performed to implement surface relief gratings on DEA films from pattern masters made from holographic recorded gratings. Since the actuation strain of the DEA depends strongly on the boundary conditions, the desired voltage-controllable deformation of the grating can be achieved by choosing suitable manufacturing parameters. Conditions were found permitting a shift of up to 9 % in a 1 μm grating. A model based on independently measured material parameters is shown to describe the optical behavior.

Citation Download Citation

Matthias Kollosche, Sebastian Döring, Guggi Kofod, and Joachim Stumpe "A novel approach to tunable diffractive transmission gratings based on dielectric elastomer actuators", Proc. SPIE 7642, Electroactive Polymer Actuators and Devices (EAPAD) 2010, 76422Y (9 April 2010); https://doi.org/10.1117/12.847533

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