Open access
Oct 2026
Signed-Asymmetry-Controlled Radiative Leakage in an All-Dielectric Terahertz Quasi-BIC Metasurface
An ultrahigh numerical quality factor does not by itself establish a useful refractive-index sensor because radiation suppression, far-field accessibility, and analyte-field overlap are controlled by different mechanisms. Here, an all-dielectric terahertz metasurface comprising two mirror-related open-rectangular res...
Shang-Jun Lin, Yu-Fan Zhang, Tie-Song Wang et al.
· Physica Scripta · 0 citations