Eigenmodes hybridization enables lattice induced transparency in terahertz metasurfaces.

To induce a lattice dependent transparency, the design in the terahertz metasurface must possess an inherent Fano or EIT-like spectral feature, typically excited by asymmetry or superposition of geometric responses. Here we investigate the near neighboring coupling phenomenon in multi-gap split ring resonators (SRRs) exhibiting four fold symmetry. By increasing the distance between neighboring meta-atoms, we successfully demonstrate the realization of a lattice induced transparency (LIT) by coupling the first-order mode (i.e., fundamental dipole) and the second-order mode excited in the SRRs. The results we obtained indicate the potential use in different fields including sensing, slow light and optical delay lines.