RT info:eu-repo/semantics/article
T1 Temperature sensor based on luminescence intensity ratio or whispering gallery modes in phosphate glass co-doped with Pr3+ and Yb3+
A1 Soler Carracedo, Kevin
A1 Benrejeb, H.
A1 Martín Benenzuela, Inocencio Rafael
A1 Hraiech, S.
A2 Física
A2 Instituto Universitario de Materiales y Nanotecnología (IMN)
AB Microspheres of diameters ranging from 30 μm to 100 μm, obtained from 0.1Pr3+-0.5Yb3+ codoped phosphate glass were fabricated and calibrated as optical temperature sensor. When themicrospheres where pumped under 457 nm laser excitation, Pr3+ typical emission was observed aswell as emission due to a Down Conversion (DC) process from Pr3+ to Yb3+ ions. Furthermore,whispering gallery modes (WGM) peaks superimposed to the Pr3+ and DC emission bands wereobserved. The microsphere was calibrated as a function of temperature using the intensity ratio ofthe 925 and 875 nm Pr3+ bands and the spectral red-shift from the WGM. Temperature uncertaintywas obtained from both techniques obtaining values of 0.7 K and 0.4 K for the band ratio andWGM results, respectively.
YR 2021
FD 2021
LK http://riull.ull.es/xmlui/handle/915/34570
UL http://riull.ull.es/xmlui/handle/915/34570
LA en
NO PID2019-106383GB-C44
DS Repositorio institucional de la Universidad de La Laguna
RD 27-sep-2024