Plasmonic Lab-on-fiber Sensor: Fabrication and Subsequent Optimization

Plasmonic sensors have received significant attention due to their highly sensitive, reliable, and rapid detection capabilities for different analytes. Bulky and expensive optical instrumentation of conventional plasmonic sensors often limits their applicability for point-of-need applications. Utilization of optical fibers as flexible, miniature substrates for plasmonic nanostructures has led to the development of lab-on-fiber technology. In this study, we have exploited nanohole array as the plasmonic material which was deposited on fiber tips. In order to improve the sensitivity of the sensor, we have introduced hydrogel microgel monolayers. in the sensor. All the fabrications steps are solely based on chemical methods.