Igor A. Izmailov

Effects of the condensation and scattering of radiation at the plasma-dynamic expansion of the detonation products of lead azide

The kinetics of the superluminescence of lead atoms, Pb 3P10 → 1D2 (722.9 nm) and 3P10 → 3P2 (405.8 nm), at the fast adiabatic expansion and cooling of the detonation products of lead azide Pb(N3)2 in vacuum has been studied. The effects of the condensation and scattering of light from drop clusters in an optically active heterophase medium has been analyzed in order to interpret the experiments in laser detonation plasma-dynamic systems based on metal azides.

Rate of vibrational deactivation of Cl2 molecules by chemically active Cl atoms in gas flow media

To state more precisely our knowledge of the vibrational energy transfer with Cl2 molecules in active media of the gas flow and chemical lasers, the study of nonequilibrium vibrational relaxation of the thermally heated and partially dissociated molecular chlorine in the supersonic flow is carry out. An experimental technique, based on the sensitive spectroscopic diagnostics and numerical gasdynamic and kinetical modeling is used. The parameters of vibrational kinetics of the molecular chlorine is found. The effect of chemically active Cl atoms on the rate of V-T deactivation of Cl2 molecules is determined.

Radiative lifetime and probabilities of the Cl2 optical transitions in visible and near-IR spectrum

Based on the measurements of the absolute emissivity of the thermally heated molecular chlorine in the shock wave flow, the redetermination of radiative characteristics of the Cl2 B3(Pi) o+u yields X1(Sigma) +g and A1(Pi) 1u yields X1(Sigma) +g electronic transitions was made with the aim of pre-laser studying a potential new laser active media. Reasons for errors in previous works are discussed.