Terahertz (THz) absorbers are highly desirable in sensing and detection devices. Herein, we have proposed a 3D dual-band near-perfect absorber that works the THz regime for applications. The theoretical calculation shows absorption efficiency of can reach 99.0 97.0% at 1.125 1.626 THz, respectively. Double peaks be tuned independently by alternating geometric parameters unit resonators. underly...