Optical Emission Spectroscopy of Atmospheric Pressure Plasma for Biomedical, Environmental, and Industrial Applications
Machala Z., Janda M., Leštinská L., Jedlovský I., Foltin I,Hensel K.
Moderní trendy ve fyzice plazmatu a pevných látek II, Hustopeče (Czech Republic), October 19, 72-76 (2006)
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Abstract: Atmospheric pressure plasmas in air and nitrogen present considerable interest for a wide range of environmental, bio-medical and industrial applications, such as air pollution control, waste water cleaning, bio-chemical decontamination and sterilization, material and surface treatment, electromagnetic wave shielding, carbon beneficiation and
nanotube growth, and trace element analysis. Besides electrical oscilloscopic measurements and photo-documentation, optical emission spectroscopy (OES) in UVVIS regions is widely used for plasma diagnostics. It provides valuable information on excited atomic and molecular states, enables to determine the rotational and vibrational
temperatures of the plasma and thus the level of nonequilibrium and the gas temperature. In addition, it gives insight in the ongoing plasma chemistry. The excited states are produced mostly by collisions with energetic electrons or by thermal collisions, and therefore it is often assumed that optical emission can provide a measurement of the plasma active size, which is of special importance in plasma shielding and other
applications...
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