Title :
Efficient metamaterial flat lenses
Author :
Grady, Nathaniel ; Heyes, Jane E. ; Chowdhury, Dibakar Roy ; Zeng, Yuan ; Reiten, Matthew T. ; Azad, Abul K. ; Taylor, Antoinette J. ; Dalvit, Diego A. R. ; Hou-Tong Chen
Author_Institution :
Los Alamos Nat. Lab., Los Alamos, NM, USA
Abstract :
We recently demonstrated ultrathin, broadband, and highly efficient (reaching 88%) terahertz (THz) metamaterial structures exhibiting near-perfect anomalous (or generalized laws of) refraction. These structures redirect up to 61% of the incident power into the anomalous beam and practically eliminate the ordinary component. Here exploit this breakthrough to create more complex optical elements, specifically a highly efficient metamaterial flat lens.
Keywords :
lenses; light refraction; terahertz metamaterials; anomalous beam; broadband metamaterial structures; incident power; metamaterial flat lenses; near-perfect anomalous refraction; optical elements; ordinary component elimination; terahertz metamaterial structures; ultrathin metamaterial structures; Frequency measurement; Lenses; Metamaterials; Optical polarization; Optical reflection; Optical resonators;
Conference_Titel :
Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on
Conference_Location :
Tucson, AZ
DOI :
10.1109/IRMMW-THz.2014.6956212
