Infrared and Laser Engineering, Volume. 54, Issue 8, 20250101(2025)
Design of metamaterial filters with ultra-narrow bandwidth and high coupling efficiency
Fig. 1. (a) Photon band structure of zero index metamaterials; (b) Transmission coefficient of metamaterials forming resonant cavities
Fig. 2. Illustrative sketch of the filter. (a) The configuration of the filter incorporating resonant cavities; (b) A compsite filter's structure composed of resonant cavities along with ZIM
Fig. 3. (a) The transmission rates of filter with and without ZIM; (b) The distribution of the field in the composite filter; (c) The distribution of the field in a line-defect filter without ZIM
Fig. 4. (a) The equivalent paramters of ZIM near the Dirac like point; (b) The compression effect of ZIM on the filtering bandwidth
Fig. 5. The field distribution in the compsite filter under different ZIM thickness. (a)
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Ying CHEN, Xiaoxia ZHOU, Li CAI. Design of metamaterial filters with ultra-narrow bandwidth and high coupling efficiency[J]. Infrared and Laser Engineering, 2025, 54(8): 20250101
Category: 光电材料与器件
Received: Feb. 13, 2025
Accepted: --
Published Online: Aug. 29, 2025
The Author Email: Xiaoxia ZHOU (xiaoxiazhou80@163.com)