Electronic Energy Transfer from Metastable Argon Atoms to Krypton Atoms.

摘要

The interaction between metastable argon atoms (3P2.0) and krypton atoms has been studied at room temperature using the flowing afterglow technique. Measurements of the emission intensities from the excited-krypton levels show that only Kr(5p(3/2)2) and Kr(5p(3/2)1) are primary products from Ar*(3p2). The pressure dependence of the emission intensities from other 5p krypton states shows that these are produced by collisional cascade from the 5p(3/2)2,1 levels; some rate constants for these cascade processes are reported. Absorption measurements using the 123.6 nm resonance transition of Kr demonstrate that the emitting Kr(5s3P1) state carries no excess translational energy; therefore, it must be produced only via radiative cascade from Kr(5p) levels.