CPC G02B 1/005 (2013.01) [G02B 5/10 (2013.01)] | 20 Claims |
1. An omnidirectional infrared reflector comprising a three-dimensional photonic crystal containing:
rods of a first material that has a first refractive index, wherein said rods are arranged to form a plurality of lattice periods that are periodic in all three dimensions, wherein said rods are connected at a plurality of nodes, wherein said lattice periods are characterized by a lattice spacing, and wherein said rods are characterized by a rod radius or width; and
a second material that has a second refractive index that is lower than said first refractive index, wherein said rods are embedded in said second material,
wherein said lattice spacing and said rod radius or width are selected to produce a photonic band gap within a selected band of the infrared spectrum.
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