Radiant Optronics

FMI (Fluorescent Micro Thermal Imaging)

How does FMI works?
This technique involves coating a sample surface with a special Thermal sensitive fluorescent rare earth-based thin film dye that,

upon exposure to UV light, Emits temperature-dependent fluorescence

at 612nm.
Because of its temperature, emission/absorption characteristics,

availability, and other qualities.
More specifically, it has the best fit for temperature dependent
fluorescence quantum yield in the temperature range near room temperature.