Continuous spatial field confocal thermometry using lanthanide doped tellurite glass
Applied Physics
2020-02-18 v1 Optics
Abstract
Quantifying temperature variations at the micron scale can provide new opportunities in optical sensing. In this paper, we present a novel approach using the temperature-dependent variations in fluorescence of rare-earth doped tellurite glass to provide a micron-scale image of temperature variations over a 200 micrometre field of view. We demonstrate the system by monitoring the evaporation of a water droplet and report a net temperature change of 7.04 K with a sensitivity of at least 0.12 K. These results establish the practicality of this confocal-based approach to provide high-resolution marker-free optical temperature sensing.
Cite
@article{arxiv.2002.07056,
title = {Continuous spatial field confocal thermometry using lanthanide doped tellurite glass},
author = {D. Stavrevski and E. Schartner and I. S. Maksymov and R. A. McLaughlin and Heike Ebendorff-Heidepriem and A. D. Greentree},
journal= {arXiv preprint arXiv:2002.07056},
year = {2020}
}
Comments
7 pages, 3 figures, for journal submission