SIMULATION OF THE DYNAMICS OF PHOTOBURNING OF STABLE SPECTRAL HOLES BY PULSED FREQUENCY-PERIODIC AND CONSTANT SOURCES

Based on the solution of a system of kinetic equations, computer simulation of the dynamics of laser radiation-induced burning of spectral holes is carried out to settle the question in which of the excited states photochemical NH-tautomerization occurs in free bases of porphyrins. A method is suggested to determine experimentally the electronic state in which a displacement of internal protons occurs that leads to the burning of a hole. The method is based on measuring the time dynamics of the formation of the hole. A new approach to determining the population of electronic levels in the process of molecular rearrangement on excitation by continuous lasers is described.