Synergistic use of Raman and photoluminescence signals for optical thermometry with large temperature sensitivity

ZnTe Crystal Multimode Cryogenic Thermometry Using Raman and Luminescence Spectroscopy

“…Accurate temperature measurements are crucial for the majority of human activities, including science, medicine, agriculture, industry, and aerospace [ 1 , 2 , 3 , 4 , 5 ]. Traditional thermometers, such as liquid-filled and bimetallic thermometers, thermocouples, and thermo-resistance, generally require physical contact and thermal transmission, severely restricting their applications in moving objects, hazardous and inaccessible locations, or micro/nanoscale [ 6 , 7 , 8 ]. To overcome these limitations, remote temperature sensing based on monitoring the changes in the optical properties of samples was proposed [ 9 , 10 , 11 , 12 , 13 ].…”

“…To overcome these limitations, remote temperature sensing based on monitoring the changes in the optical properties of samples was proposed [ 9 , 10 , 11 , 12 , 13 ]. Optical thermometry can be realized via the following methods: optical interferometry, near-field optical scanning microscopy, Raman scattering, and luminescence spectroscopy [ 7 , 14 , 15 ].…”

Resonance/off-resonance excitations: implications on the thermal evolution of Eu3+ photoluminescence

“…, Eu 3+ doped ZnO and BaTiO 3 phosphors. 29–31 For ZnO:Eu 3+ , it has been argued that the defects of the ZnO host feed the Eu 3+ excited states. 29 Accordingly, the increase in the Eu 3+ luminescence on heating is attributed to the increase in the population of the defect levels.…”

Ratiometric Raman and Luminescent Thermometers Constructed from Dysprosium Thiocyanidometallate Molecular Magnets

“…[ 13 ] It is worth mentioning that the first attempts to develop synergistic Raman and photoluminescence thermometers have been conducted, but these studies were limited only to the detection of Raman active bands through emission spectroscopy, not direct Raman spectroscopy. [ 14 ]…”

“…[13] It is worth mentioning that the first attempts to develop synergistic Raman and photoluminescence thermometers have been conducted, but these studies were limited only to the detection of Raman active bands through emission spectroscopy, not direct Raman spectroscopy. [14] Raman thermometry works based on the vibrational peak shifts with temperature or by taking the ratio of the Raman band at the anti-Stokes (aS) and Stokes (S) positions. The second working principle exploring the aS/S ratio distinguishes Raman thermometry from infrared thermometry in terms of increased sensitivity.…”