In this paper, a single-band tunable metamaterial absorber with metal disk array is verified in Terahertz (THz) range. An absorption peak Is achieved based on local surface plasmon (LSP) mode resonance at 14.3 THz with 90% amplitude under room temperature. In the first stage of measurement, this absorption peak is enhanced and shifted to lower frequencies with diameter increasing, while reduced and shifted to higher frequencies with lattice constant increasing. In the second stage of measurement, this peak is in sensitive to temperature. Moreover, a new absorption peak is achieved at 26.6 THz with temperature increasing. This peak is enhanced from 45% to 81% when temperature is increased from 300 k to 400 k, and shifted from 26.6 THz to 18.7 THz. Therefore, a metamaterial absorber that can both modulate new absorption peak and retain original absorption performance is verified.

本文在太赫兹（THz）范围内验证了具有金属盘阵列的单波段可调谐超材料吸收器。基于在室温下振幅为90％的14.3 THz处的局部表面等离子体激元（LSP）模式共振，可获得吸收峰。在测量的第一阶段，该吸收峰随着直径增加而增强并移至较低频率，而随着晶格常数增加而减小并移至较高频率。在测量的第二阶段，该峰值对温度敏感。此外，随着温度的升高，在26.6 THz处出现了一个新的吸收峰。当温度从300 k增加到400 k时，此峰值从45％增强到81％，并从26.6 THz转变为18.7 THz。因此，