A Dnv point group structure possessing complete band gap based on gradual heterostructure and self-simulating sphere

Tianrui Zhai; Zhaona Wang; Rongkuo Zhao; Jing Zhou; Dahe Liu; Xiangdong Zhang
November 2008
Applied Physics Letters;11/17/2008, Vol. 93 Issue 20, p201902
Academic Journal
A structure with Dnv point group was fabricated by compounding a gradual heterostructure and a self-simulating sphere. The gradual heterostructure has two-dimensional omnidirectional band gap and the self-simulating sphere makes it possess a complete band gap. The experimental results were explained by theoretical analysis. This kind of structure can be implemented using low refractive index materials.


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