Electrical and Optical Characterization of a pulsed plasma of N$_{2}$-H$_{2}$

This paper considers the electrical and optical characterization of glow discharge pulsed plasma in N$_{2}$/H$_{2}$ mixture at pressures of 0.5-4.0 Torr and discharge current between 0.2 and 0.6 A. The discharge current and the applied voltage are measured using conventional techniques. The emission from the pulsed plasma of a steady-state electric discharge in a N$_{2}$/H$_{2}$ mixture in the wavelength range 200-600 nm is investigated. It is shown that, at a range pressure of 0.5 to 4.0 Torr, the discharge mainly emits within the wavelength range 280-500 nm. The emission consists of N$_{2}$(C-X) 316 nm, 336 nm, 358 nm narrow peaks and a broad band with a maximum at $\lambda _{max}$= 427 nm. Also bands of N$_{2, }$N$_{2}^{+}$ and NH excited states were observed. All bands have their maximum intensity at the discharge current of 0.4 A. The intensities of the main bands are determined as functions of the pressure and discharge current.