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.
Claims29
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 reactive cells of small dimension relative to said wavelength, each cell having a plurality of quantum dots associated therewith 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 of small dimension relative to the propagating wavelength, said resonant cells 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 associated with said resonant cells, 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.
An apparatus configured to exhibit at least one of a negative effective permittivity and a negative effective permeability for electromagnetic radiation of at least one wavelength, comprising:
- an arrangement of resonant cells, each resonant cell being of small dimension relative to said wavelength;
- and
- means for reducing net losses in the electromagnetic radiation propagating through the resonant cells, said means for reducing comprising a plurality of quantum dots associated with each resonant cell.
Dependencies are inferred from the claim text.