Quasicrystalline structures and uses thereof
First Claim
1. A device comprising a quasicrystalline heterostructure, said heterostructure comprising a quasicrystalline arrangement of at least two dielectric materials in a two- or three-dimensional space, wherein said arrangement comprises a lattice pattern having at least a five-fold symmetry axis and not a six-fold symmetry axis, and wherein said quasicrystalline heterostructure exhibits a photonic band structure in said space, said band structure having corresponding symmetry, which symmetry is forbidden in crystals, and which band structure comprises a complete band gap.
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Accused Products
Abstract
This invention relates generally to devices constructed from quasicrystalline heterostructures. In preferred embodiments, two or more dielectric materials are arranged in a two- or three-dimensional space in a lattice pattern having at least a five-fold symmetry axis and not a six-fold symmetry axis, such that the quasicrystalline heterostructure exhibits an energy band structure in the space, the band structure having corresponding symmetry, which symmetry is forbidden in crystals, and which band structure comprises a complete band gap. The constructed devices are adapted for manipulating, controlling, modulating, trapping, reflecting and otherwise directing waves including electromagnetic, sound, spin, and surface waves, for a pre-selected range of wavelengths propagating within or through the heterostructure in multiple directions.
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Citations
22 Claims
- 1. A device comprising a quasicrystalline heterostructure, said heterostructure comprising a quasicrystalline arrangement of at least two dielectric materials in a two- or three-dimensional space, wherein said arrangement comprises a lattice pattern having at least a five-fold symmetry axis and not a six-fold symmetry axis, and wherein said quasicrystalline heterostructure exhibits a photonic band structure in said space, said band structure having corresponding symmetry, which symmetry is forbidden in crystals, and which band structure comprises a complete band gap.
Specification