The two-dimensional square and triangular photonic lattice under the effects of magnetic field, hydrostatic pressure, and temperature

Abstract

A standard plane-wave expansion method is used to investigate the photonic band structure of two-dimensional square and triangular lattices composed by cylindricalshell rods (GaAs rods surrounded by air shells) embedded in a semiconducting GaAs background. An analysis of the influence of geometry of the lattice basis is performed by changing inner and outer radii. The effect of dispersive dielectric responses as well as the influence of temperature and applied hydrostatic pressure to obtain efficient tunable bandgaps has also been considered. The presence of applied magnetic field is discussed as an efficient tool for tuning of the photonic band gaps in this kind of systems. The results suggest that a combination of a doped semiconductor constituent with an anisotropic geometry provides an efficient realization of photonic systems with tunable bandgaps.