Electrically reconfigurable optical metamaterial based on colloidal dispersion of metal nanorods in dielectric fluid
Year: 2009
Type: article
Abstract: Optical metamaterials capture the imagination with breathtaking promises of nanoscale resolution in imaging and invisibility cloaking. We demonstrate an approach to construct a metamaterial in which metallic nanorods, of dimension much smaller than the wavelength of light, are suspended in a fluid and placed in a nonuniform electric field. The field controls the spatial distribution and orientation of nanorods because of the dielectrophoretic effect. The field-controlled placement of nanorods causes optical effects such as varying refractive index, optical anisotropy (birefringence), and reduced visibility of an object enclosed by the metamaterial.
Source: Applied Physics Letters
DOI: 10.1063/1.3278442
Authors: Andrii B. Golovin, Oleg D. Lavrentovich
Institution: Kent State University
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2095754226