An H2 – F2 amplifier initiated by IR laser radiation in an inhomogeneous working mixture

An H₂ – F₂ amplifier initiated by radiation from a pulsed hydrogen fluoride laser is studied theoretically. Numerical calculations are made by taking into account the inhomogeneity of the initial HF concentration appearing upon preparation of the laser mixture in experiments. The mean theoretical output energy for the H₂:F₂:O₂: He = 100:600:30:100-Torr mixture is about 15 JL^-1 for an average initial pressure of hydrogen fluoride equal to 0.5 Torr along the amplifier axis. The results of calculations show that, if a sufficiently homogeneous medium is obtained in experiments, lasing becomes possible according to the kinetic scheme of initiation proposed for the H₂ – F₂ laser.