Effect of the solution temperature in a singlet-oxygen generator on the formation of active medium in an ejector oxygen — iodine laser

The influence of the solution temperature in a singlet-oxygen generator on the formation of the active medium in the ejector oxygen – iodine laser is investigated. The following parameters of the active medium at the solution temperature -20°C are obtained: the gain is 7.2 × 10^-3 cm^-1, the Mach number is M = 2, the temperature is 205 K, and the static pressure is 9.3 mmHg. As the solution temperature is increased to -4°C, the gain decreases to 5 × 10³ cm^-1, the Mach number decreases to 1.78, while the temperature and the static pressure increase to 241 K and 10.7 mmHg, respectively. As the solution temperature increases from -20 to -4°C, the losses in O₂(¹Δ) increase by less than 20%, while the dissociation efficiency of molecular iodine decreases by less than 21%.