High-Q mid-infrared refractive index sensor based on Fano resonance in an all-dielectric double-rod structure

Key Points

• The sensor shows enhanced sensitivity for refractive index measurements, achieving significant performance metrics.
• Measured optical properties include notable shifts with changes in refractive index, indicating an innovative sensing approach.
• Analysis conducted using an all-dielectric double-rod structure underscores the role of fano resonance in enhancing sensor capabilities.
• This work highlights potential applications in real-time monitoring systems, opening avenues for advanced optical sensors.