Open AccessPlanar, flattened Luneburg lens at infrared wavelengths
Author(s) -
John Hunt,
Talmage Tyler,
Sulochana Dhar,
Yu-Ju Tsai,
Patrick T. Bowen,
Stéphane Larouche,
N.M. Jokerst,
David R. Smith
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.001706
Subject(s) - optics , transformation optics , luneburg lens , metamaterial , planar , lens (geology) , wavelength , materials science , infrared , optoelectronics , refractive index , physics , computer science , computer graphics (images)
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.