A Prototype of Electric Discharge Gas-Flow Oxygen–Iodine Laser: 2. Simulation of the Parameters of the Active Medium Formed in a Gas-Flow Slab RF Discharge in O2 : He : CF3I Mixtures

Abstract

A calculated analysis of the possibility of achieving the generation in a gas-flow electric discharge oxygen–iodine laser when it is excited by a transverse slab RF discharge for various conditions of passing of the CF3I : O2 : He gas mixture components along the gas duct was carried out: in subsonic flow without cooling the channel walls and with cooling of various sections of the channel walls down to 100 K. To do this, reactions involving CF3I iodide and the photon balance equation were added to the model. It was assumed that the active medium was formed in two ways: (i) all components of the gas mixture simultaneously passed through the RF excitation zone; (ii) oxygen and helium passed through the RF discharge zone, and the iodide-containing component (CF3I : He mixture) was introduced through an injector located downstream gas flow from the discharge zone. Calculations have shown that it is possible, in principle to achieve the laser generation mode under conditions implemented on the experimental setup.