Preferential excitation and enhanced emission of Pb atoms following detonation of lead azide Academic Article uri icon

abstract

  • Preferential excitation of the 3 P° 1 state of the lead atom and enhanced emission in the Pb (3 P° 1 Pb (3 P° 1→ 1 D 2) transition at 722.9 nm have been observed following the detonation of lead azide, Pb (N3) 2. The detonation is initiated by a short laser pulse and the products are expanded through a supersonic nozzle. It is suggested that the enhanced emission is due to preferential excitation of Pb (3 P° 1) via energy transfer from electronically excited N2 combined with the effect of self‐trapping of the emission from 3 P° 1 to the 3 P 0, 1, 2 states. The implications to short‐wavelength chemical lasers are discussed.

publication date

  • January 1, 1991