A two dimensional theoretical model for describing gain coefficient in N2-lasers and the model validity for CVL and excimer lasers

►Due to presence of the scattered data on laser gain-coefficients in self-terminating gas lasers, a theoretical model for predicting gain coefficients in these lasers has been introduced. ►The model is based on experimental measurements, simulation study for gain coefficient in N2-lasers, and applying the basic realization of laser physics. ►In this model one- and two-dimensional presentations of lasers are introduced, where the possibility of predicting N2-laser gain coefficient for different geometrical configurations and input voltages was possible. ►The model was able to predict the reported gain coefficients in CVLs and excimer lasers. ►This is the first realization of macroscopic presentation of lasers of short pulse widths and the model is able to direct many future measurements in this category correctly.