Gui-Dong Liu

Tunable symmetry-protected quasi-BICs in bulk Dirac semimetal metasurface for terahertz sensing

Symmetry-protected bound states in the continuum (BICs) suppress radiative leakage because the preserved structural symmetry prevents the resonant mode from coupling to accessible free-space radiation channels. Their practical implementation, however, requires finite radiative accessibility together with post-fabricati...