Optics and Spectroscopy
Effect of Cooperative Interactions in Optical Ensembles on the Threshold Characteristics of Lasing in the Case of Coherent Optical Pumping
Г. М. Ермолаева, V. P. Klochkov, G. E. Nikolaev, В. А. Светличный, V. A. Smirnov, В. Б. Шилов
Abstract
The dependence of the threshold pump energy of dye lasers on the quantum yield of fluorescence of active solutions in the case of laser excitation was studied. The rate of increase in the threshold pump energy was found to be considerably lower than the rate of decrease in quantum yield. The results were interpreted in terms of the development of the cooperative interaction between active centers in the high-intensity coherent pump field.