The BPG Property of Photonic Crystal for TE Mode with Sector Pillars as Scatterers

Abstract

Scatterer is the basic element of photonic crystal. With operating frequency f =1THz (wavelength λ =300μm), we proposed sector as scatterer and analyzed the influence of parameters to photonic bandgap (BPG) for the structures of pillars in air, such as the center radius of sector r, width of sector d, and central angle of the sector θ. For two-dimensional hexagonal arrays, the absolute BPG width and the relative BPG width were demonstrated by the three parameters in TE mode, respectively.