A broadband absorber which was proposed by Thue–Morse structures containing graphene-based hyperbolic metamaterials (GHMM) is theoretically investigated. The Thue–Morse layer is composed of a lossy dielectric, conventional material layer, and GHMM. It is shown to absorb roughly 80% of all available electromagnetic waves at an 11 terahertz absorption bandwidth at normal angle incidence. The absorption bandwidth and absorptance is affected by incident angle, Fermi energy, and the thickness of dielectric. These findings can lead to the development of midinfrared photonic devices and have potential applications for designing broadband optoelectronic devices.
The reflectance and reflection phase properties of one dimensional photonic crystals with anisotropic
left-handed materials is investigated by transfer matrix method. It is demonstrated that the width of zero- n band
gap is influenced by the incident angle, polarization, the proportion of lattice and the ratio of thickness，which is
different from the zero- n band gap with isotropic left hand materials. The value of reflection phase is affected by
incident angle and polarization and not affected by the proportion of lattice and the ratio of thickness. These
characteristic may be useful for making photonic crystal phase compensators and the dispersion compensators.