title: Planar, flattened Luneburg lens at infrared wavelengths.
abstract: Employing artificially structured metamaterials provides a means of circumventing the limits of conventional optical materials. Here, we use transformation optics (TO) combined with nanolithography to produce a planar Luneburg lens with a flat focal surface that operates at telecommunication wavelengths. Whereas previous infrared TO devices have been transformations of free-space, here we implement a transformation of an existing optical element to create a new device with the same optical characteristics but a user-defined geometry.
authors.affiliation: Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, North Carolina 27706, USA. john.hunt@duke.edu
authors.forename: John
authors.initials: J
authors.lastname: Hunt
authors.forename: Talmage
authors.initials: T
authors.lastname: Tyler
authors.forename: Sulochana
authors.initials: S
authors.lastname: Dhar
authors.forename: Yu-Ju
authors.initials: YJ
authors.lastname: Tsai
authors.forename: Patrick
authors.initials: P
authors.lastname: Bowen
authors.forename: Stéphane
authors.initials: S
authors.lastname: Larouche
authors.forename: Nan M
authors.initials: NM
authors.lastname: Jokerst
authors.forename: David R
authors.initials: DR
authors.lastname: Smith
mesh_terms: D005336:Fiber Optic Technology / Q000295:instrumentation*; D007259:Infrared Rays; D007909:Lenses; D008420:Manufactured Materials; D008962:Models, Theoretical; D036103:Nanotechnology / Q000295:instrumentation*; D012825:Silicon / Q000737:chemistry; D013685:Telecommunications / Q000295:instrumentation*
chemical_list: D012825:Silicon