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THE MONOCHROMATIZATION EFFECT – AN APPROACH TO SURFACE ANALYSIS BY GLOW DISCHARGE – OPTICAL EMISSION SPECTROSCOPY

C. C. Surdu-Bob1,* , P. Chiru1, O. Branza1, G. Musa1

Affiliation

  1. Low Temperature Plasma Laboratory, National Institute for Lasers, Plasma and Radiation Physics, Bucharest, Romania

Abstract

Over 20 years ago, our group reported on the selective emission of a single or very few spectral lines under certain plasma conditions. This was called the Monochromatisation effect (the M effect) and was observed experimentally in the visible region of the spectra. We report here for the first time on the wavelengths of Ne, Ar, Kr, Xe that present M-effect at 100 Torr total pressure. In this paper it is shown that this effect could play a major role in dc and rf glow optical emission spectroscopy (GD-OES) used as surface analytical tool. This work is intended to contribute to the optimization of this analytical technique for a better accuracy of surface analysis..

Keywords

Glow discharge – optical emission spectroscopy, Monochromatization effect.

Submitted at: Jan. 21, 2005
Accepted at: Sept. 22, 2005

Citation

C. C. Surdu-Bob, P. Chiru, O. Branza, G. Musa, THE MONOCHROMATIZATION EFFECT – AN APPROACH TO SURFACE ANALYSIS BY GLOW DISCHARGE – OPTICAL EMISSION SPECTROSCOPY, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 5, pp. 2391-2395 (2005)