Directivity and isotropic band-gap in 12-fold symmetry plasmonic quasi-crystals with small index contrast

作者：Regan C J^*; de Peralta L Grave; Bernussi A A

来源：Applied Physics Letters, 2011, 99(18): 181104.

DOI：10.1063/1.3657498

We experimentally investigated the map of the momentum of photons of propagating modes in dye-doped dielectric loaded plasmonic quasi-crystals with 12-fold symmetry. Using Fourier plane image analysis we established the relation between the pseudo-Brillouin zone and the directivity of propagating modes in plasmonic quasi-crystals with different periods at different frequencies. We demonstrated that a full isotropic bandgap can be achieved with the proposed structures.

• 出版日期2011-10-31