Abstract
A rate-equation model for the laser action of infrared dyes is introduced. An extended four-level scheme is used to describe the photophysical processes in the dye molecules. The dye is excited by a single picosecond pulse in the traveling-wave geometry. The spectral and temporal properties of the picosecond dye-laser emission and the gain curve of the system are calculated. The numerical results are compared to experimental data. The theoretical model is in good quantitative agreement with the experiment.
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Lobentanzer, H., Elsaesser, T. Theoretical and experimental analysis of infrared dye-laser action in a traveling-wave pumping geometry. Appl. Phys. B 41, 139–145 (1986). https://doi.org/10.1007/BF00693915
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DOI: https://doi.org/10.1007/BF00693915