Document Type
Article
Publication Date
4-2011
Publication Source
Nanophotonics
Abstract
We theoretically explored the feasibility of a tunable metamaterial using binary as well as core-shell nanoparticle dispersed liquid crystal cells in the infrared and optical regimes. Owing to the spatial variation of the permittivity of the liquid crystal host upon the application of a bias voltage, the host was decomposed into a layered medium and the effective refractive index recalculated for each layer due to the distribution of polaritonic and plasmonic nanoparticles.
The scattering, extinction, and absorption of such a nanoparticle dispersed liquid crystal cell were also found. Depending on the applied voltage bias across the liquid crystal host, the types of nanoparticles used, and their radii and volume-filling fractions in the liquid crystal host, near-zero as well as negative index of refraction can be obtained over a range of frequencies, according to the effective medium theory.
Inclusive pages
051603-1 to 051603-15
ISBN/ISSN
2192-8614
Document Version
Published Version
Copyright
Copyright © 2011, Society of Photo-Optical Instrumentation Engineers (SPIE)
Publisher
Society of Photo-Optical Instrumentation Engineers (SPIE)
Volume
5
Peer Reviewed
yes
Issue
1
eCommons Citation
Nehmetallah, George; Aylo, Rola; and Banerjee, Partha P., "Binary and Core-Shell Nanoparticle Dispersed Liquid Crystal Cells for Metamaterial Applications" (2011). Electrical and Computer Engineering Faculty Publications. 105.
https://ecommons.udayton.edu/ece_fac_pub/105
Included in
Computer Engineering Commons, Electrical and Electronics Commons, Electromagnetics and Photonics Commons, Optics Commons, Other Electrical and Computer Engineering Commons, Systems and Communications Commons
Comments
This document is provided for download in compliance with the publisher's policy on self-archiving. Permission documentation is on file.