A doubly modulated metamaterial absorber is proposed and numerically verified. An absorption peak (P₁, 95%) is achieved at resonance wavelength 1.6 μm at room temperature, which is derived from two strong local surface plasmas (LSP) modes excited on central metal particle. S-parameter extracted results show that near ideally impedance matching condition is achieved at resonance wavelength 1.6 μm between the proposed metamaterial and free space. Moreover, the resonant properties of this peak can be modulated through changing the Fermi energy of grapheme film. When the conductivity of VO₂ particles equals or exceeds 2*10⁴ S/m, four new absorption peaks (P₂, P₃, P₄, and P₅) are found at 1.4 μm, 1.16 μm, 1.97 μm, and 2.29 μm. Four resonant modes between metal and VO₂ particles are revealed based on the insulation-metal phase. This design methodology demonstrates the feasibility of changing from a single band metamaterial to a multi-band metamaterial.

提出了一种双调制超材料吸收体，并进行了数值验证。的吸收峰（P ₁，95％）在共振波长实现在室温下，这是从两个强局部表面等离子体（LSP）激发在中心金属颗粒模式衍生1.6微米。S参数提取的结果表明，在拟议的超材料与自由空间之间的共振波长1.6μm处达到了接近理想的阻抗匹配条件。此外，可以通过改变石墨烯膜的费米能来调节该峰的共振特性。当VO ₂颗粒的电导率等于或超过2 * 10 ⁴  S / m时，会出现四个新的吸收峰（P ₂，P_在图3中，发现P ₄和P ₅分别为1.4μm，1.16μm，1.97μm和2.29μm。基于绝缘金属相揭示了金属和VO ₂粒子之间的四个共振模式。该设计方法论证明了从单波段超材料转变为多波段超材料的可行性。