Nonlinear Behavior of Solutions Illuminated by a Ruby Laser: II

The simultaneous temporal and spatial equations governing the light lntensity and electronic molecular level population in a laser-illuminated medium were solved numerically for the cases of metal-free and chloroaluminum phthalocyanine. An energy model, consistent with the low-intensity spectroscopic data, was constructed, and the rate constants for transitions and absorption cross sections were varied to get simultaneous agreement with several independent literature experimental data at high irradiation intensities. The results, providing a self-consistent picture of the molecular rate constants within the assumed model, are compared with other results obtained by direct experimentation (where available) and to other approximate calculation methods.