|Title||Planar, flattened Luneburg lens at infrared wavelengths|
|Publication Type||Journal Article|
|Year of Publication||2012|
|Authors||J. Hunt, T. Tyler, S. Dhar, Y-J. Tsai, P. Bowen, S. Larouche, N.M. Jokerst, D.R. Smith|
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.
|Short Title||Opt. Express|