Estimation of Transition Metal Nitride Surface Plasmon Refractometer Sensitivity

We numerically investigate the sensitivity of surface plasmon sensors using transition metal nitrides instead of noble metals, such as silver and gold. These alternative metals present improved thermal and mechanical properties that support the design of better sensors for harsh environment. The results show that titanium nitride and zirconium nitride are viable alternatives to silver as the sensitivity of sensors using these metals is better than sensors using silver.