Citation: | Manjappa M, Kivshar Y. High-Q resonant Terahertz metasurfaces. Opto-Electron Adv 7, 240043 (2024). doi: 10.29026/oea.2024.240043 |
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Hybrid lattices supporting quasi-BICs: (a) The schematic showing the cancellation of far-radiation field for the symmetry protected BIC structures. (b, c) The Fabricated samples showing the superlattice geometry of the Universal (U)-qBIC and Hybrid (H)-qBIC metastructures. (d) The universal inverse quadratic behaviour of the Q- factor of BIC system with respect to its assymetry paramater. (e) Experimetal THz spectrum showing the improved Q-factor numbers for the H-qBIC resonance compared to the U- qBIC resonance.