Anisotropic liquid crystals for tunable optical negative-index metamaterials

Author

Wang, Xiande ; Kwon, Do-Hoon ; Werner, Douglas H. ; Khoo, Iam-Choon

Author_Institution

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

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

2D reconfigurable negative-index metamaterials incorporating anisotropic LCs have been presented that operate in the near-IR. The anisotropic behavior of the LCs was treated rigorously using the periodic FE-BI full-wave analysis technique. The entries in the permittivity tensor for the LCs can be tuned by changing the director orientation of the LC molecules. There are several apparent design tradeoffs between the two configurations such as number of LC layers employed, biasing requirements, and ease of fabrication.

Keywords

anisotropic media; boundary-elements methods; finite element analysis; metamaterials; optical tuning; FE-BI full-wave analysis technique; anisotropic liquid crystals; permittivity tensor; tunable optical negative-index metamaterials; Anisotropic magnetoresistance; Geometrical optics; Liquid crystals; Magnetic materials; Metamaterials; Optical refraction; Optical scattering; Optical variables control; Refractive index; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE

Conference_Location

San Diego, CA

Print_ISBN

978-1-4244-2041-4

Electronic_ISBN

978-1-4244-2042-1

Type

conf

DOI

10.1109/APS.2008.4619734

Filename

4619734