A mechanism and kinetics of discharge pumped mercury bromide lasers

Emission spectra of the HgBr (B
²
Sigma
⁺
-Z
²
Sigma
⁺
) band system and atomic mercury lines observed during collisions of HgBr
₂
with N
⁺
/N
₂
⁺
ions at different laboratory kinetic energies are discussed. Emission cross sections of the most intense band of the HgBr transition at 502 nm have been measured at low energies of the projectile ions. Collision-induced dissociative excitation processes appear to be the dominant mechanism producing these emissions.