INVESTIGATION OF SPECTRAL-LINE PROFILES B Y INTRACAVITY LASER SPECTROSCOPY METHOD

The experimental and theoretical profiles of atomic and ionic absorpti on lines, obtained by intracavity laser spectroscopy (ICLS) with broad band tunable dye lasers, are studied. The following objects, to be pro bed in laser cavity, have been chosen: plasmas plume, formed under act ion of laser radiation on a surface of aluminium target; pulsed electr ic discharge in helium or xenon; vapour-gas medium of thermal atomizer with impurities of barium, caesium and thallium, introduced into a fu rnace, The shape of line profile, its width, the shift of line centre, resolved line structure are investigated. The efficiency of the ICIS is demonstrated for diagnostics of plasma with a prevalence of differe nt mechanisms of spectral line broadening.