Bound state in the continuum induced high-Q resonances in all-dielectric terahertz metasurface for enhanced refractive index sensing

Key Points

• Enhanced refractive index sensing is achieved through high-Q resonances in the terahertz metasurface, resulting in improved sensitivity and performance.
• Key evidence shows significant resonance quality factors, contributing to precise refractive index measurements.
• Analysis of the bound state in the continuum principle demonstrates a novel approach to enhancing sensor capabilities.
• Findings suggest potential applications in optical sensing technologies, highlighting the relevance of terahertz metasurfaces for future innovations.