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Mesophotonics have developed a proprietary range of
photonic quasicrystals that provide novel functionality for a broad
range of applications. Photonic Quasicrystals are similar to Photonic
Crystal but rely on a quasicrystal arrangement of air holes. Quasicrystals
possess long-range translation order but short range disorder. Photonic
Quasicrystals offer predetermined high symmetry orders not achievable
in nature for example 8, 12 or 14 and hence offer the following
unique features:
- Isotropic Photonic Bandgaps, the forbidden
wavelength range resides in the same place for all directions
of incident photon propagation.
- Photonic Quasicrystal operation in low refractive
index materials.
- Flat Dispersion bands.
- Tailor penetration depth of field into bandgap,
formation of bandgap not arising from nearest neighbour air rod
interactions.
- Selectable Diffraction patterns with multiple first
order beams (>6).
- Tailored Far field emission.
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SEM micrographs of fabricated
planar photonic quasicrystal structure.
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Multiple beam Diffraction
from a fabricated planar photonic quasicrystal structure residing
at the bottom of the pictograph while laser light is incident
from the top
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