Title :
Nano-Dispersed Liquid Crystal Tunable Negative-Zero-Positive Index Metamaterials
Author :
Liang, X. ; Weiner, B. ; Werner, D.H. ; Khoo, I.C.
Author_Institution :
Pennsylvania State Univ., University Park
Abstract :
Nematic LC´s offer an excellent path toward achieving tunability in a variety of different terahertz and optical devices. We have presented technology that can take advantage of the properties of LC to realize the index of refraction tuning. Metamaterials consisting of LC-dispersed coated spheres were designed to have an index of refraction that tuned from negative to zero to positive at the frequency of operation.
Keywords :
metamaterials; nematic liquid crystals; refraction; tuning; nanodispersed liquid crystal; negative-zero-positive index metamaterials; nematic liquid crystal; optical devices; refraction tuning; Crystalline materials; Dielectric substrates; Frequency; Gold; Liquid crystals; Metamaterials; Optical materials; Optical mixing; Periodic structures; Permittivity;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396269
