Influence of absorption lines of atmospheric gases on the pulsed radiation spectrum of short duration

摘要

Based on the numerical solution of the parabolic wave equation for the complex spectral amplitude of the wave field by method of splitting into physical factors the propagation of broadband pulsed optical beam taking into account absorption lines of atmospheric gases is studied. It is found that the influence of absorption lines on the propagation of short pulsed laser radiation whose spectrum coincides with the centers of strong absorption of the atmosphere spectrum in the intervals between weak absorption lines is insignificant.