skip to main content

SciTech ConnectSciTech Connect

Title: Methods and apparatus for controlling dispersions of nanoparticles

Electrically reconfigurable metamaterial with spatially varied refractive index is proposed for applications such as optical devices and lenses. The apparatus and method comprises a metamaterial in which the refractive indices are modified in space and time by applying one or more electric fields. The metamaterials are electrically controllable and reconfigurable, and consist of metal (gold, silver, etc.) particles of different shapes, such as rods, with dimension much smaller than the wavelength of light, dispersed in a dielectric medium. The metamaterial is controlled by applying a non-uniform electric field that causes two effects: (1) It aligns the metallic anisometric particles with respect to the direction of the applied electric field and (2) It redistributes particles in space, making their local concentration position dependent.
Authors:
;
Publication Date:
OSTI Identifier:
1160239
Report Number(s):
8,867,121
12/587,731
DOE Contract Number:
FG02-06ER46331
Resource Type:
Patent
Research Org:
Kent State University, Kent, OH (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE