Aieta, FrancescoGenevet, PatriceKats, Mikhail A.Yu, NanfangBlanchard, RomainGaburro, ZenoCapasso, Federico2019-09-172012Aieta, Francesco, Patrice Genevet, Mikhail A. Kats, Nanfang Yu, Romain Blanchard, Zeno Gaburro, and Federico Capasso. 2012. “Aberration-Free Ultrathin Flat Lenses and Axicons at Telecom Wavelengths Based on Plasmonic Metasurfaces.” Nano Letters 12 (9): 4932–36. https://doi.org/10.1021/nl302516v.1530-69841530-6992http://nrs.harvard.edu/urn-3:HUL.InstRepos:41372497The concept of optical phase discontinuities is applied to the design and demonstration of aberration-free planar lenses and axicons, comprising a phased array of ultrathin subwavelength-spaced optical antennas. The lenses and axicons consist of V-shaped nano-antennas that introduce a radial distribution of phase discontinuities, thereby generating respectively spherical wavefronts and nondiffracting Bessel beams at telecom wavelengths. Simulations are also presented to show that our aberration-free designs are applicable to high-numerical aperture lenses such as flat microscope objectives.en-USJournal Article2019-09-1710.1021/nl302516v