Title :
Nano-Dispersed Liquid Crystalline Structures for Tunable Negative-, Zero-, and Positive Index Materials in the Optical-Terahertz Regimes
Author :
Khoo, I.C. ; Diaz, A. ; Bossard, J. ; Liang, X. ; Werner, D.
Author_Institution :
Electrical Engineering Department, The Pennsylvania State University, University Park, PA 16802
Abstract :
We describe here three approaches to realize tunable or reconfigurable negative-zero-positive index materials: (1) planar nano-structured frequency selective surfaces [FSS] with aligned nematic liquid crystal; (2) core-shell nano-size spheres randomly distributed in a bulk nematic liquid crystal matrix; (3) magneto-optics active cholesteric liquid crystal as 1-D photonic crystal. Such metamaterials can be designed for applications in the optical, terahertz and microwave regimes.
Keywords :
Crystalline materials; Crystallization; Frequency selective surfaces; Liquid crystals; Magnetic cores; Magnetic materials; Nanostructured materials; Nanostructures; Optical materials; Photonic crystals;
Conference_Titel :
Biophotonics, Nanophotonics and Metamaterials, 2006. Metamaterials 2006. International Symposium on
Conference_Location :
Hangzhou, China
Print_ISBN :
0-7803-9773-8
Electronic_ISBN :
0-7803-9774-6
DOI :
10.1109/METAMAT.2006.334935
