Special optical fibers for temperature and strain sensing using nonlinear effects ...
| Grant number: | 14/50632-6 |
| Support type: | Regular Research Grants |
| Duration: | March 01, 2015 - November 30, 2018 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics - Classical Areas of Phenomenology and Applications |
| Cooperation agreement: | AKA |
| Principal Investigator: | Cristiano Monteiro de Barros Cordeiro |
| Grantee: | Cristiano Monteiro de Barros Cordeiro |
| Principal investigator abroad: | Hanne Elisabeth Ludvigsen |
| Institution abroad: | University of Helsinki, Finland |
| Home Institution: | Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil |
Abstract
The project ís based on the study of fiber-based plasmonic sensors. Using optical fibers instead of a prism in plasmonic sensors has opened up the way towards remote sensing applications with a high degree of integration and the advantages of compact size and low cost. This has drawn a lot of attention and many groups have studied both experimentally and theoretically various optical-fiber-based sensor designs, such as metallized tapered fibers and metallized Bragg gratings. Most recently, initiated by the advances in fabrication technology and the need for analyzing ever smaller sample volumes the interest in all-in-fiber sensors based on microstructured optical fibers (MOF) with coated inclusions has raised. In these designs the micrometer-sized pores are intended to be infiltrated by the analyte. However, despite recent progress, coating the walls of the tiny, micron-sized cladding holes for resonant surface plasmon excitation still remains a challenge. An approach towards the realization of highly sensitive SPR fiber sensors is based on open-structured MOF. The main goal of the proposed project is to design, model, fabricate, and characterize photonic crystal fibers and microfiber with new functionalities enabling novel SPR sensing applications. We plan to work on a set of theoretical tools for the design and characterization of optical sensors and develop novel fabrication techniques. The project will be divided in four main tasks involving both universities: to model new fiber-based platforms, to fabricate such platforms, to study metallic deposition methods and to experimentally characterize the performance ofthe SPR and LSPR fiber-based sensors. (AU)