Great care must be taken when using the laser flash photolysis technique, so as to be able to obtain accurate measurements of the quantum yield of photochemical processes and of the cross section of excited states. Due to the high light intensities required, the disturbance caused by both the exciting and the analyzing light beams to the investigated system has to be taken into consideration. The mathematical analysis of high intensity flash photolysis has been used to work out several numerical examples which serve as a basis for the discussion of published results.
Chmouel R. Goldschmidt,
"Laser Flash Photolysis--A Dynamical Actinometer At High Light Intensity", Proc. SPIE 0099, 3rd European Electro-Optics Conf, (10 April 1977); doi: 10.1117/12.955337; https://doi.org/10.1117/12.955337