New Electronic-Transition Laser Systems. Part I. Electron Pumped Systems. Part II. Chemically Pumped Systems.

摘要

This report consists of two parts. Part I describes the program to develop a kinetic model for the energy flow in electron-beam pumped rare gas-halide lasers. The experimental program involves observations of fluorescence from argon/krypton/fluorine mixtures pumped by a short pulse electron beam. In addition to the emissions at 193nm (ArF) and 248nm (KrF) the authors observe significant broad band emissions near 290nm and 400nm which they assign to Ar2F and Kr2F. The important reactions that form ArF and KrF are also discussed in this report. Part II summarizes the status of electronic-transition chemical laser development. There has not yet been a demonstration of gain in a visible chemical laser systems,and it appears unlikely that practical lasers of this type will be developed in the near future. Substantial progress has been made toward understanding the kinetics of highly exothermic reactions,but a complete knowledge of any one system is still to be achieved.