Article
Liquid-Crystals for Tunable Photonic Crystals, Frequency Selective Surfaces and Negative Index Material Development
Molecular Crystals and Liquid Crystals
(2006)
Abstract
We present the results of experimental and theoretical studies that demonstrate the feasibility of realizing electro-optical switching, frequency filtering and negative index of refraction. In liquid crystal infiltrated TiO2 inverse opal 3-D photonic crystals, we observed a sizeable electrical tuning of the Bragg reflection peak. In frequency selective structures with a liquid crystal over-layer, the tuning range can be as wide as 380 nm, operational throughout the entire visible – far infrared spectra range. Furthermore, some of the structures can be designed to exhibit a negative index of refraction property over a predetermined frequency interval.
Keywords
- frequency selective surfaces,
- liquid crystals,
- negative index materials,
- photonic crystals,
- tunable reflection and transmission
Disciplines
Publication Date
September 22, 2006
Publisher Statement
For a complete list of authors, please refer to the article.
Citation Information
Elton Graugnard. "Liquid-Crystals for Tunable Photonic Crystals, Frequency Selective Surfaces and Negative Index Material Development" Molecular Crystals and Liquid Crystals Vol. 453 Iss. 1 (2006) Available at: http://works.bepress.com/elton_graugnard/20/