Add-drop resonance filter based on photonic quasicrystal

We have demonstrated that it is possible to use quasicrystals to make circuit with add-drop filter characteristics We employed the Ammann-Beenker tiling as a base to model a photonic quasicrystal lattice of dielectric rods with ε=10. This structure possesses a complete photonic band gap in TM polarization. We discuss advantages and disadvantages of employing photonic quasicrystal as a resonance add-drop filter with respect to the more conventional photonic crystal based filters.