Reconfigurable angle selective emitters in the near-IR based on phase change materials

Author

Bossard, Jeremy A. ; Turpin, Jeremiah P. ; Werner, Douglas H.

Author_Institution

Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA, USA

fYear

2013

fDate

7-13 July 2013

Firstpage

142

Lastpage

143

Abstract

Metamaterials have been previously studied for their ability to tailor the IR emissivity dispersion, pattern, and polarization of a surface. Here, we investigate a reconfigurable metamaterial structure based on dielectric resonators composed of phase-change material 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; light polarisation; optical dispersion; optical metamaterials; optical resonators; phase change materials; IR emissivity dispersion; dielectric resonators; metamaterial structures; near-IR emitters; off-normal angles; phase change materials; reconfigurable angle selective emitters; reconfigurable metamaterial structure; surface polarization; Dielectrics; Iron; Metamaterials; Surface waves; Three-dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6710732

Filename

6710732