RT Journal Article
T1 Advanced Plasmonic Fiber-Optic Sensor for High Sensitivity Measurement of Magnetic Field
A1 Rodriguez Schwendtner, Eva María
A1 Navarrete Fernández, María Cruz
A1 Díaz Herrera, Natalia
A1 González Cano, Agustín
A1 Esteban Martínez, Óscar
AB An advanced plasmonic sensor for high sensitivity measurement of magnetic field is presented. It is based on the combination of a SPR refractometer (doubly-deposited tapered optical fiber) with magnetic fluids used as transducers. The device is compact and robust and has been theoretically analyzed and completely characterized, showing a very good experimental performance. We have studied the dependence of the response of the device with the direction of the field, confirming that, as expected, the sense of the variation of the refractive index is opposite for parallel and perpendicular fields, which is an interesting feature for practical applications. We have also evaluated the dependence on the concentration of the employed magnetic fluid and the influence of the chosen type of ferrofluid. In all these measurements the sensitivity experimentally obtained is amongst the highest reported in the literature for this kind of devices and we have extended the dynamic range. Finally, we have applied a novel, auto-referential, signal processing algorithm to the measurements, showing its possibilities. The obtained experimental results demonstrate the feasibility and the advantages of the application of SPR fiber-optic sensors to magnetic field measurements.
PB IEEE
SN 1558-1748
YR 2019
FD 2019-05-10
LK https://hdl.handle.net/20.500.14352/12124
UL https://hdl.handle.net/20.500.14352/12124
LA eng
NO Manuscript received April 11, 2019; revised May 8, 2019; acceptedMay 8, 2019. Date of publication May 10, 2019; date of current version August 6, 2019
NO Ministerio de Economía y Competitividad (MINECO)/FEDER
NO Comunidad de Madrid
NO Programa FEDER
DS Docta Complutense
RD 18 may 2024