In the current case a YAG:Eu based phosphor was used with 532nm excitation wavelength to achieve short life time decays at low temperatures.
Hence the current probe design enables the observation of the undistorted life time decay.
Several publications have shown the dependency between the life time decay of this phosphorescence and the temperature [5,7-11,15,16].
0] is the initial intensity, t is the life time decay, [B.
In order to measure the temperature on the Viper, a correlation between the life time decay and the temperature is needed in the form of a calibration curve.