Eur. Phys. J. D (2021) 75: 56
https://doi.org/10.1140/epjd/s10053-021-00068-w

Regular Article - Optical Phenomena and Photonics

Temperature sensing using YAG:Dy single-crystal phosphor

¹ Institute of Physics, University of Belgrade, Pregrevica 118, 11080, Belgrade, Serbia
² AMI, d. o. o, Ptuj, Slovenia

^a sevic@ipb.ac.rs

Received: 21 December 2020
Accepted: 29 January 2021
Published online: 10 February 2021

Abstract

In this paper, we analyze remote temperature sensing of using dysprosium-doped yttrium aluminum garnet (YAG: single crystal by means of fluorescence intensity ratio method. The single crystal was produced by the Verneuil process. Photoluminescence spectra were acquired using continuous laser diode excitation at 365 nm. The calculation of temperature sensing calibration curve was based on ratio of intensities of 458 nm and 493 nm spectral lines. It is shown that the synthesized material can be efficiently used as a thermographic phosphor up to 1273 K. Our results are compared with other recently published results using principal component analysis.