D. Czaplewski, H. Cai, T. Roy, K. Ogando, L. Stan, D. López
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We describe a dielectric Huygens' metasurface, operating in the visible spectrum, that can manipulate the phase of the transmitted light over a full 2π with high transmission efficiency. The metasurface is comprised of dielectric cylindrical nanoparticles embedded in a glass-like medium. The size of the nanoparticles and their separation are much smaller than the wavelength of visible light. From the metasurface, we construct a lens that focuses light to a diffraction limited spot size with high efficiency.
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