Title :
Metamaterials with angle selective emissivity in the near-IR
Author :
Bossard, Jeremy A. ; Werner, Douglas H.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA
Abstract :
Metamaterials have been previously studied for their ability to tailor the dispersive IR emissivity of a surface. Here, we investigate two metamaterial structures based on an electromagnetic band-gap surface and dielectric resonators for use as near-IR emitters with custom angle selectivity. A genetic algorithm is successfully employed to optimize the metamaterial structures to have minimum emissivity in the normal direction and high emissivity at desired off-normal angles specified by the designer.
Keywords :
dielectric resonators; emissivity; energy gap; genetic algorithms; infrared sources; metamaterials; optical design techniques; angle selective emissivity; dielectric resonators; electromagnetic band-gap surface; genetic algorithm; metamaterial structures; near-IR emitters; normal direction; off-normal angles; Azimuth; Dielectrics; Genetic algorithms; Gold; Metamaterials; Periodic structures;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6349218
