Angular Photonic Band Gap

Problem: Efficiency of the solar-energy conversion is limited by re-radiation of sun-light which causes energy loss. Technology: 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. Christopher n

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Mechanical Hamstring™

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