Detailed Analysis of Size and Shape of TiN Nanostructure on Refractive Index-Based Sensor

One significant application of this research article is enhancing the sensitivity of refractive index-based localized surface plasmon resonance (LSPR) sensor by using TiN nanostructures. The LSPR-based sensors are highly effective in detecting minute environmental changes and a crucial measure for these sensors is the refractive index sensitivity (RIS). The unique properties of TiN nanoparticles and the precision of the FDTD method drive significant interest in optimizing size and shape of TiN nanoparticles for enhanced RIS. By optimizing above mention parameters, we maximized the RIS to ~979 nm/RIU, thereby improving the performance of LSPR-based sensors. This research is vital for developing highly sensitive and efficient nitride-based LSPR-based sensors, which have applications in biomedical diagnostics, environmental monitoring, and other fields.