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Creators/Authors contains: "Oberbiermann, Timo"

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  1. ; ; ; ; ; ; (, Optica)
    Flat lenses enable thinner, lighter, and simpler imaging systems. However, large-area and high-NA flat lenses have been elusive due to computational and fabrication challenges. Here we applied inverse design to create a multi-level diffractive lens (MDL) with thickness <<#comment/> 1 . 35 µ<#comment/> m , diameter of 4.13 mm, and N A = 0.9 at wavelength of 850 nm (bandwidth ∼<#comment/> 35 n m ). Since the MDL is created in polymer, it can be cost-effectively replicated via imprint lithography. 
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