Toward Multispectral Imaging with Colloidal Metasurface Pixels.

Stewart, Jon W; Akselrod, Gleb M; Smith, David R; Mikkelsen, Maiken H · Adv Mater · 2017

basic_science · Level V

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Abstract

Multispectral colloidal metasurfaces are fabricated that exhibit greater than 85% absorption and ≈100 nm linewidths by patterning film-coupled nanocubes in pixels using a fusion of bottom-up and top-down fabrication techniques over wafer-scale areas. With this technique, the authors realize a multispectral pixel array consisting of six resonances between 580 and 1125 nm and reconstruct an RGB image with 9261 color combinations.