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Title: Methods and apparatus for controlling dispersions of nanoparticles

Abstract

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.

Inventors:
;
Issue Date:
Research Org.:
Kent State Univ., Kent, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1160239
Patent Number(s):
8867121
Application Number:
12/587,731
Assignee:
Kent State University (Kent, OH)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
DOE Contract Number:  
FG02-06ER46331
Resource Type:
Patent
Resource Relation:
Patent File Date: 2009 Oct 13
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Lavrentovich, Oleg D, and Golovin, Andrii B. Methods and apparatus for controlling dispersions of nanoparticles. United States: N. p., 2014. Web.
Lavrentovich, Oleg D, & Golovin, Andrii B. Methods and apparatus for controlling dispersions of nanoparticles. United States.
Lavrentovich, Oleg D, and Golovin, Andrii B. Tue . "Methods and apparatus for controlling dispersions of nanoparticles". United States. https://www.osti.gov/servlets/purl/1160239.
@article{osti_1160239,
title = {Methods and apparatus for controlling dispersions of nanoparticles},
author = {Lavrentovich, Oleg D and Golovin, Andrii B},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {10}
}

Patent:

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