Laser-Induced Plasma Temperature Determination Using Time-Resolved NH Molecular Spectroscopy

Abstract

Diatomic molecules such as C2, CN, CH, NO and OH are frequently used in combustion diagnostics.1–3 Fluorescence from several of these molecules has been observed in laser-induced breakdown in various gases and previously reported.4,5 Laser induced breakdown in gases is an alternative means by which excited state diatomic molecules can be produced at high temperature - on the order of 5000 K.