Date of Award
Master of Science in Engineering Science- (M.S.)
Chemical Engineering and Chemistry
Joseph W. Bozzelli
Howard S. Kimmel
Barbara B. Kebbekus
Purely chemical lasers promise to provide future high-power lasers for remote installations, airplanes, ships and in space without the necessity of external electric power, sources.
This study is about the design and construction of a new, gas phase purely chemical NO2 laser, based on the reaction of NO + O3 + NO≠2 + O2. The vibrationally excited NO≠2 species at 1-40 mm Hg total pressure is the source of energy (photons) for the laser. A series of computer program calculations on the reaction kinetics and relaxational processes involved have also been made, showing support for the formation of a population inversion of the vibrationally excited species (N01). The optimum kinetic parameters were determined from these calculations. Two reactor tube systems were constructed for the experiments, one shorter in length (shorter reaction time) than the other, both of which did not show consistent positive results. The maximum time needed for optimum population inversion was attainable in the experiments with the second laser reactor, but higher total concentration of excited NO≠2 species in the activity medium are needed.
The results obtained with these two laser tube reactors and the kinetic calculations permit the design of a yet improved third generation laser assembly. The third generation laser tube, with transversial flow design as well as a fast, powerful vacuum pump, has been designed on calculations which show that lasing will be achievable.
Malalis, Conrado Mendoza, "A purely chemical nitrogen dioxide laser" (1981). Theses. 2040.