Patent ID: 8582935

Claim:
A solar energy apparatus comprising: a waveguide having a top surface, a bottom surface, a collection end, and a detection end; one or more scattering features disposed on or within the waveguide, the scattering features positioned in locations extending from near the collection end to near the detection end; and a wavelength correction element disposed on the top surface of the waveguide and co-extensive with the waveguide from the collection end to the detection end, the wavelength correction element providing linear increasing delay to incident energy received by the waveguide, the wavelength correction element being a material wedge layer with a constant taper from a thin section to a thick section, wherein the thin section is located near the collection end and the thick section is located near the detection end of the waveguide, wherein the wavelength correction element is formed of a material having a higher dielectric constant than the waveguide.