5B4 - The theory of Doppler and impact broadening of spectral lines and pressure effects on the power output of a gas laser

The theory of broadening and shift of the spectral lines including the statistical dependence of Doppler and impact broadenings is developed. One of the results of this theory is the possibility of obtaining asymmetric line profiles. With the aid of this theory, one can explain the experimental results of A. Szoke and A. Javan concerning the pressure effects on the dip in the power output of the gas laser.