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Updated: May 25, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Planar, flattened Luneburg lens at infrared wavelengths
John Hunt1, Talmage Tyler, Sulochana Dhar
1Center for Metamaterials and Integrated Plasmonics, Duke University, Durham, North Carolina 27706, USA. john.hunt@duke.edu
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.
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