Luminescence thermometry

Baker, G.A., Baker, S.N., and McCleskey, T.M., Noncontact two-color luminescence thermometry based on intramolecular luminophore cyclization within an ionic liquid, Chem. Commun., 2932-2933, 2003. 

Luminescence thermometry has become the most common noncontact technique in recent years. As shown in Section 2.2, the crystal-field levels of the excited state rapidly thermahze after an excitation and, as a result, the luminescence spectrum varies as a function of temperature. Furthermore, thermal equilibrium is rapidly established regardless of the crystal-field transition that has been used for the excitation, causing the luminescence spectral profile to become independent of the pump wavelength (DeLoach et al., 1993). Absolute, differential, and ratios of luminescence intensities have been used as... 

Patterson, W.M., Seletskiy, D.V., Sheik-Bahae, M., Epstein, R.I., Hehlen, M.P., 2010a. Measurement of solid-state optical refrigeration by two-band differential luminescence thermometry. 1. Opt. Soc. Am. B 27 (3), 611-618. 

Allison, S.W. Cates, M.R. Goedeke, S.M. Hollerman, W.A. Womack, F.N. Gillies, G.T. Remote thermometry with thermographic phosphors instrumentation and applications. Chapter 4. In Handbook of Luminescence, Display Materials, and Devices, Volume 2 Inorganic Display Materials, Nalwa, H.S., Rohwer, L.S., Eds. American Scientiflc Publishers, 2003 187-250. 

The first detector to be used for SFA was a photometer, and photometric determinations still form the vast majority of current methods. Other detectors in common use are UV spectrophotometers, used primarily for pharmaceutical compovmds and for bitterness in beer flame photometers, for potassium and sodium determination fluorimeters, used primarily for measuring low levels of determinants in the presence of interferences, such as the determination of histamine in blood, and vitamins in food extracts and ion-selective electrode and pH detectors. In principle, almost any detector with flow-through capability can be used with SFA systems, and determinations based on densitometry, thermometry, and luminescence have been published, among others. 

Plasma/electroluminescent display Thermometry Higher resolution, lower power requirement, low voltage operation Noncontact temperature sensing based on the change in the excitation and emission spectra, decay Hfetime and intensity of luminescence with temperature. Unlike infiaied temperature sensors, the measurements are not influenced by the infrared absorption by glass, water, gas, biological cells, and other materials... 

Chambers MD, Clarke DR (2009) Doped oxides for high-temperature luminescence and lifetime thermometry. Annu Rev Mater Res 39 325-359... 

---