Photonic-band-gap effects in two-dimensional polycrystalline and amorphous structures
Photonic-band-gap effects in two-dimensional polycrystalline and amorphous structures
We study numerically the density of optical states (DOS) in two-dimensional photonic structures with short-range positional order and observe a transition from polycrystalline to amorphous photonic systems. In polycrystals, photonic band gaps (PBGs) are formed within individual domains, which leads to a depletion of the DOS similar to that in …