Anisotropic Photonic Crystals with Diamond Lattice
各向异性金刚石结构的光子晶体

With the plane-wave expansion method,the photonic-band-gap structure for a diamond lattice consisting of a uniaxial anisotropic-dielectric sphere in air was studied through tuning three inequivalent 1/3 Brillouin zone.The results show that choosing the suitable range of filling fraction and anisotropy,a full band gap opens in the whole Brillouin zone for this anisotropic PBG structure.The gap to midgap ratio and bandgap width is tunable as a result of the changing extraordinary axis orientation of the uniax...