Abstract

We simulate the changes of the photonic band structure of thecrystal in two dimensions with a quasi-fractal structure when it is confinedto a fractal. The result shows that when the dielectric distribution isconfined, the photonic band structure will be compressed on the whole andthe ground photonic band gap (PBG) closed while the next PBGs shrunk,in conjunction with their position declining in the frequency spectrum.Furthermore, the PBGs in the high zone are much more sensitive thanthose in low zones.

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