High Directivity Engineering with Low Index Polymer Quasicrystalline Structures

Reciprocal space engineering allows generating photonic structures with the desired transport properties. This study demonstrates the high directivity radiation regime of a dipole placed inside a spherical polymer quasicrystalline structure. We set a special distribution of maxima in the reciprocal space on the sphere and find a quasicrystalline structure in real space using the Fourier transform. For such a structure, we investigate the gain, which will depend on the number of maxima in the reciprocal space. The results of numerical simulation show that the highest gain is reached at a particular number of maxima.