Plasmonic Optical Fiber Sensors: Technology and Applications

Dear Colleagues,

In recent years, optical fibers have been replacing the prism substrates for surface plasmonic resonance (SPR), either using continuous metallic coatings or nanoparticles, such as for localized surface plasmon resonance (LSPR). Plasmonic optical fiber sensors (PFOSs) are applied in a broad range of fields, from biomedical diagnosis to environmental safety, and are used to monitor different chemical and physical quantities, such as the concentration of biomolecules and chemicals, and for sensing force, pressure, and temperature.

PFOSs are promising and powerful optical chemical and biochemical detection techniques, allowing the monitoring of label-free biomolecular interactions in real time due to the technology’s fast response, high sensitivity, and ability to achieve ultra-low limits of detection. Different materials and alloys have also been investigated for plasmonic effect enhancement along with new interrogation techniques dedicated to increasing resolution and sensitivity. As the application fields of PFOS technology have grown enormously, this Special Issue is devoted to the most recent developments in the area, including sensing fundamentals, design, coating materials, innovative interrogation techniques and data processing, and practical implementation (e.g., biomedical applications, environmental evaluation, and food analysis).

Dr. Cátia Leitão
Dr. Nunzio Cennamo
Dr. Daniele Tosi
Guest Editors

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