A narrowband filter based on 2D 8-fold photonic quasicrystal

作者：Ren, Jie; Sun, XiaoHong^*; Wang, Shuai

来源：Superlattices and Microstructures, 2018, 116: 221-226.

DOI：10.1016/j.spmi.2018.01.017

• Narrowband
• Single channel
• Pass band filter
• 8-fold photonic quasicrystal

In this paper, a novel structure of narrowband filter based on 2D 8-fold photonic quasi-crystal (PQC) is proposed and investigated. The structure size is 8 mu m x 8 mu m, which promises its applications in optical integrated circuits and communication devices. Finite Element Method (FEM) has been employed to investigate the band gap of the filter. The resonance wavelength, transmission coefficient and 3 dB bandwidth are analyzed by varying the parameters of the structure. By optimizing the parameters of the filter, two design formulas of resonance wavelength are obtained. Also, for its better linearity of the resonance, the structure with line-defect has also seen a large uptake in sensor design.

• 出版日期2018-4
• 单位郑州大学