Decoupling optical function and geometrical form using conformal flexible dielectric metasurfaces.

ABSTRACT: Physical geometry and optical properties of objects are correlated: cylinders focus light to a line, spheres to a point and arbitrarily shaped objects introduce optical aberrations. Multi-functional components with decoupled geometrical form and optical function are needed when specific optical functionalities must be provided while the shapes are dictated by other considerations like ergonomics, aerodynamics or aesthetics. Here we demonstrate an approach for decoupling optical properties of objects from their physical shape using thin and flexible dielectric metasurfaces which conform to objects' surface and change their optical properties. The conformal metasurfaces are composed of silicon nano-posts embedded in a polymer substrate that locally modify near-infrared (λ=915 nm) optical wav

SUBMITTER: Kamali SM 

PROVIDER: S-EPMC4874029 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature