US Patent 7695646 Composite material with electromagnetically reactive cells and quantum dots

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.