Light discrimination based on angle of incidence, photonic crystal, anisotropic dielectric response
Solar energy applications
Efficiency of the solar-energy conversion is limited by re-radiation of sun-light which causes energy loss.
This invention presents numerical simulations of a novel class of material systems that strongly discriminate light based on the angle of incidence, over a broad range of frequencies, and irrespective of the polarization. Unique properties of these systems emerge from exploring photonic crystals whose constituents have anisotropic dielectric response.
For solar energy applications, this technology enables nearly perfect green-house effect.
US Patent Application Number 13/186159, filed on July 19, 2011
Last revised: February 4, 2012