Ne II spectral lines in the cathode sheath of an abnormal glow discharge

• Published in: The European physical journal. D, Atomic, molecular, and optical physics Vol. 75; no. 1
• Main Authors: Ivanović, Nikola V., Nedić, Nikodin V., Šišović, Nikola M., Spasojević, Djordje, Konjević, Nikola
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 2021; Springer Nature B.V
• Subjects: Applications of Nonlinear Dynamics and Chaos Theory; Atomic; Cathodes; Copper; Electric field strength; Electrode materials; Glow discharges; Helium; Iron; Line spectra; Molecular; Neon; Optical and Plasma Physics; Optical emission spectroscopy; Physical Chemistry; Physics; Physics and Astronomy; Quantum Information Technology; Quantum Physics; Regular Article - Topical Issue; Sheaths; Spectroscopy/Spectrometry; Spintronics; Titanium; Topical Issue: Advances in Physics of Ionized Gases and Spectroscopy of Isolated Complex Systems: from Biomolecules to Space Particles - SPIG 2020
• ISSN: 1434-6060; 1434-6079
• DOI: 10.1140/epjd/s10053-020-00025-z

We report the results of an experimental study of Ne II 369.421 nm, 371.308 nm, and 372.711 nm spectral line shapes by means of the optical emission spectroscopy The spectral lines are recorded in the cathode sheath region of an abnormal glow discharge operated in pure neon and by using different cathode materials: copper (Cu), iron (Fe), and titanium (Ti). The studied lines have complex spectral profiles which enabled us to determine important discharge parameters. In this work we present the correlation between the width of pedestals of the side-on recorded Ne II spectral lines and the electric field strength distribution as well as the correlation between line pedestal width and the distance of the recording position from the cathode. Graphical abstract