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Recently, the emergence of topological edge state of matter raises new challenges in understanding the states of condensed matter and phase transitions beyond the the Ginzburg-Landau paradigm. The discovery of topological edge states of condensed matter also stimulate the development in other field, such as the realm of photonics, particularly in photonic crystals (PhCs). In this paper, we systematically...
As monopoles of the synthetic gauge fields in k-space, topological nodal points such as Dirac and Weyl points in photonic spectrum offer unique abilities of manipulating light, such as achieving zero refractive index, Klein tunneling, and single-mode lasing enhancement. It is also found that 3D Weyl points can provide effective angle and frequency selective transmission. However, designing topological...
A two dimensional Zinc Oxide nanorod medium model with disorder location and disorder size is set up, and the spectrum and the light field distribution are investigated by means of finite difference time domain method and perfect match layer boundary condition. Four resonant peaks are found in the spectrum; the localization phenomenon is found in the light field distribution at the resonant peak wavelength...
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