设计了一种新型电磁共振吸收超常材料。这种材料具有金属-绝缘体-金属结构特性，其顶部的金属层由四瓣扇形金块构成。模拟发现，此结构在可见光和紫外频段具有良好的电磁吸收能力，且位于四瓣扇形金块下的介质层的形状、尺寸和介电常数的变化对该材料的吸波能力具有很大的影响。当四瓣扇形金块下的介质层为同等半径的圆柱形状，材料为氧化铝，厚度一定时，结构的吸收率高于90%的相对吸收线宽达到0.76，吸收范围从可见光波段延伸至紫外光波段。该研究为电磁吸波器件的设计和制造提供了一定的理论依据。

A metamaterial that acts as a strongly resonant absorber with a periodic structure in which each unit cell consists of a metal-insulator-metal structure is presnted. The top metal layer consists of four-fan-rings-shaped gold blocks. Simulating electromagnetic responses of the structure, the structure achieves a good absorption at visible and ultraviolet frequencies is demonstrated. Furthermore, when change the shape, size and permittivity of the dielectriclayer under the four-fan-rings-shaped gold layer, the dielectriclayer has a great influence on the absorption of the metamaterial. Simulations show that the resonant frequency of the resonator ranges from visible region to ultraviolet region when the dielectriclayer set to Al2O3, four-fan-rings-shaped, and appropriate size. The great absorption of the structure over 90% has the relative absorption line width of 0.76. The proposed structure provides theoretical basis for the design and fabracation of the electromagnetic absorbers.