Pure and Applied Chemistry

Abstract: Streamer discharges in atmospheric gases are currently receiving increased attention in connection with environmental issues or new material treatment technologies. The chemical reactivity of streamer-produced plasma, created by various active atomic and molecular species, is a critical parameter for most application areas. Recently, advanced diagnostics based on optical and energy transfer methods have been applied to study dynamics and spatial distribution of several important streamer-produced species. This paper presents an overview of the most recently reported experimental achievements to monitor and detect reactive species, such as, e.g., NO, OH, and O₃ radicals, nitrogen and oxygen atoms, or N₂(A³Σ) metastables.