A Ultrabroadband Efficient Practical Terahertz Absorber

Three-dimensional (3D) Nickel (Ni) Skeleton is a kind of flexible, process easily, low-cost, broadband, and efficient terahertz absorbing material, which can achieve more than 98% absorption in the frequency range of 0.5-2.0 THz. Based on this discovery, the feasibility of making 3D skeletal metal to achieve THz absorption is proposed and experimentally verified. It is believed that this discovery can accelerate the practical application of THz absorbing materials.