Sravya M. Nuguri*, Daniel Shreiber, Benjamin Cerjan, Vincent Einck*, Naomi J. Halas, Mark H. Griep, James J. Watkins* recently published their research in Advanced Optical Materials. The paper is entitled, "Stretchable Metamaterials with Tamm/Fano Resonances for Tunable, Efficient Mechanochromic Color Shifting."
In this work James J. Watkins and co-workers report the fabrication of a strain-tunable, mechanochromic, color-shifting device by the combination of scalable nanoimprint lithography with layer-by-layer assembly. The integration of stretchable Bragg stack with gold and aluminum metasurfaces facilitates tunable structural colors and optical resonances from visible to near-infrared ranges. This stretchable device exhibits long-term stability, reversibility, and high spectral sensitivity to mechanical strain. Cover art by Connor Witt from the Watkins Group.