Fibre Tip Sensors for Localised Temperature Sensing Based on Rare Earth-Doped Glass CoatingsReport as inadecuate




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ARC Centre of Excellence for Nanoscale BioPhotonics and Institute for Photonics and Advanced Sensing and School of Chemistry and Physics, The University of Adelaide, Adelaide 5005, Australia





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Abstract We report the development of a point temperature sensor, based on monitoring upconversion emission from erbium:ytterbium-doped tellurite coatings on the tips of optical fibres. The dip coating technique allows multiple sensors to be fabricated simultaneously, while confining the temperature-sensitive region to a localised region on the end-face of the fibre. The strong response of the rare earth ions to changing temperature allows a resolution of 0.1–0.3 °C to be recorded over the biologically relevant range of temperatures from 23–39 °C. View Full-Text

Keywords: rare earth; thermometry; point sensing; optical fibres; optical fibre sensing rare earth; thermometry; point sensing; optical fibres; optical fibre sensing





Author: Erik P. Schartner * and Tanya M. Monro

Source: http://mdpi.com/



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