Electric dipole resonance-driven terahertz broadband absorber with wide-angle and dynamic tunability

enable dynamic tuning capability. The devices exhibit excellent polarization insensitivity and wide-angle stability with a synergistic effect of structural symmetry and slit design, and maintain efficient broad absorption at 40° incidence. Finally, the devices were found to have good process tolerance by varying different structural parameters. This work provides a high-performance and integration-friendly solution for THz metamaterial absorbers, showing significant application potential in electromagnetic shielding, smart switching, and wavefront modulation.