Composite material with electromagnetically reactive cells and quantum dots
AssigneeHewlett-Packard Development Company, L.P.
InventorsShih-Yuan Wang, Alexandre Bratkovski
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Abstract
A composite material and related methods are described, the composite material configured to exhibit at least one of a negative effective permittivity and a negative effective permeability for incident radiation of at least one wavelength. The composite material comprises an arrangement of electromagnetically reactive cells of small dimension relative to the wavelength, each cell having a plurality of quantum dots associated therewith for enhancing a resonant response thereof to the incident radiation at the wavelength.
Claims19
A composite material configured to exhibit at least one of a negative effective permittivity and a negative effective permeability for incident radiation of at least one wavelength, the composite material comprising an arrangement of electromagnetically resonant cells having smaller dimension relative to said wavelength, each cell having a plurality of quantum dots, each of the electromagnetically resonant cells comprising an electrical conductor, wherein the quantum dots are integrated into the electrical conductor for enhancing a resonant response thereof to the incident radiation at said wavelength.
A method for propagating electromagnetic radiation at a propagating wavelength, comprising:
- placing a composite material in the path of the electromagnetic radiation, the composite material comprising resonant cells having smaller dimension relative to the propagating wavelength, each of said resonant cells comprising an electrical conductor and being configured such that the composite material exhibits at least one of a negative effective permittivity and a negative effective permeability for said propagating wavelength;
- and
- providing power to a plurality of quantum dots integrated into said electrical conductor, at least a portion of that power being coupled into a resonant response of said resonant cells for reducing net losses in the electromagnetic radiation propagating therethrough.
Dependencies are inferred from the claim text.