complete photonic bandgaps in 12-fold symmetric quasicrystals

Photon crystals attract current interest for various reasons, such as their ability to suppress light 1,2 spontaneous radiation.
This and related property comes from the formation of photon bandwidth, and multiple scattering of photons by lattice of periodically varying refractive index can prevent the propagation of radio waves with specific wavelength.
One way to form a photon crystal is to etching two
The vertical air hole is a dimensional periodic lattice of the dielectric plate waveguide 3, 4, 5, 6, and 7.
This structure can show the complete photon bandwidth s8, 9,10, but only for large size
Diameter air holes in high refractive index materials (
For example, gallium as arsenic, n = 3. 69)
Unfortunately, when combined with a fiber with a low refractive index, it causes a significant reduction in optical transmission.
Some people suggest quasi-Crystal (
Not cyclical)
The lattice can also have photon bandwidth.
Here, we prove this concept through experiments and prove that it can achieve complete photon bandwidth-non-
Orientation and any polarization-
To achieve Silicon in nitrogen with small air holes (n = 2. 02)
Even glass (n = 1. 45).
These properties make photon quasi-crystals have broad application prospects in various optical devices 14, 15, 16, 17, 18.