Evolution of Degenerate Pairs of Bound States in the Continuum With Broken Symmetry
Bound states in the continuum (BICs) with exceptionally high quality factors ($Q$ factors) have hbl5266ca become focal points in photonic device research, finding applications in nonlinear enhancement, laser generation, sensing, and beyond.In this study, we systematically investigate the intricate relationship between the in-plane symmetry groups o