The impact of ²H_9/2->⁴I_13/2 Emission from Er^{3+<\sup> Ions on Ratiometric Optical Temperature Sensing with Yb3+/Er3+ Co-Doped Upconversion Materials}

The University of Washington MRSEC is supported by the National Science Foundation under NSF Award Number DMR-2308979. Any opinions, findings, conclusions or recommendations expressed in this material are those of the PI(s) and do not necessarily reflect those of the National Science Foundation.