Influence of excitation and detection geometry on optical temperature readouts – reabsorption effects in luminescence thermometry

Abstract

The technology of lanthanide-based luminescent thermometers enabling remote optical temperature measurements is intensively developed. Sensors that allow the most precise, remote temperature readouts can be successfully used in biological, electronic,...

Ultralow pressure sensing and luminescence thermometry based on the emissions of Er3+/Yb3+ codoped Y2Mo4O15 phosphors

“…Moreover, often-underestimated factors such as reabsorption and scattering effects, which can differ in various systems/media, may affect the optical readouts of a given sensor, hence, sensing in different local environments is always challenging. 75,76…”

Er3+-Doped Upconversion Nanoparticle Coatings for Thermometric Microscanning: Tackling Experimental Factors

“…These resolutions strongly depend on the luminescent properties of UCNPs employed and on the experimental setup used for measurement. 39 With this in mind, we synthesized Er 3+ -doped UCNPs of different sizes and employed them to cover a diverse set of surfaces and thermally active microstructures for their evaluation as optical thermal probes. We characterized several aspects relevant to the development of a thermometric scanning platform able to map temperatures on the micrometer scale.…”

“…It is written as σ t = σ normalT | d T d t | max where |d T /d t | max is the maximum change observed in temperature per unit of time. These resolutions strongly depend on the luminescent properties of UCNPs employed and on the experimental setup used for measurement …”