Spectral characteristics

Investigations of physical properties of the long-living plasma formations, arising from the high voltage erosive discharge through the surface of weak water solution (LLPF-WD), have been continued using filtered videorecoding. Near ultraviolet and near infrared images of the objects at different stages of their formation and evolution have been obtained. Ultraviolet luminescence of the objects during about 0.2 – 0.3 s has been discovered, which evidences the presence of metastable states with high excitation level and implies non-equilibrium character of the energy storing in LLPF-WD.