LOW-LOSS IR DIELECTRIC MATERIAL SYSTEM FOR BROADBAND MULTIPLE-RANGE OMNIDIRECTIONAL REFLECTIVITY

摘要

A multiple-range omnidirectional reflector (2) includes a plurality of bilayers (4). Each of the bilayers includes a first layer (8) comprising of a low absorption and low refractive index material and a second layer (10) comprising of a high refractive index and low absorption material. Varying the thickness (h1,h2) of one or more of the bilayers (4) produces multiple omnidirectional reflecting ranges.