Graphene-based hyperbolic metamaterials are well known for their optical anisotropy, high absorption of electromagnetic radiation, and low energy loss. We proposed a novel multilayer graphene-silica hyperbolic metamaterial designed as a grating structure providing narrowband near-perfect absorption of radiation in a mid-infrared band. The absorber is designed for insensitivity of the absorptance peak positioning on the angle of the incident radiation and distinct polarization selectivity of absorption for the TM mode only. A new way of handling the absorption is achieved by varying the thickness of its combined graphene-silica layers. Possibly, the type of absorber will be applicable in the fields of optical sensing, photoelectric detection, and other potential fields.

基于石墨烯的双曲超材料以其光学各向异性，电磁辐射的高吸收和低能量损耗而闻名。我们提出了一种新颖的多层石墨烯-二氧化硅双曲线超材料，该材料设计为光栅结构，可在中红外波段提供窄带近乎完美的辐射吸收。设计吸收器时，吸收峰仅对入射辐射的角度不敏感，并且仅对TM模式具有独特的吸收偏振选择性。通过改变其组合的石墨烯-二氧化硅层的厚度，可以获得一种处理吸收的新方法。吸收器的类型可能会应用于光学传感，光电检测和其他潜在领域。