Advances in development of chemical oxygen-iodine laser

Abstract

The contribution deals with three investigated problems on Chemical Oxygen-Iodine Laser (COIL) and utilization of the results in advanced COIL development and advanced techniques connected with the COIL. These problems are following i) A gain modulation on the laser transition in iodine atom, I(2P1/2)-(2P3/2), by an external magnetic field, and its utilization for the COIL output power stabilization, ii) The evaluation of the Einstein A-coefficient of singlet oxygen, O2(1Δg), and utilization of this coefficient in the advanced diagnostics for O2(1Δg) determination in a laser pumping, and iii) A development of the advanced COIL using a chemically driven iodine atom delivery system, and a confrontation of advantages of this system with disadvantages of conventional source of atomic iodine via dissociated molecular iodine. Examples of few recent experimental results are presented.