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Image processing of argon glow discharge plasma using interferometry

Published online by Cambridge University Press:  13 July 2015

A. M. Hamed  and
M. A. Saudy
A. M. Hamed*
Affiliation:
Physics Department, Faculty of Science, Ain Shams University, 11566 Cairo, Egypt
M. A. Saudy
Affiliation:
Physics Department, Faculty of Science, Ain Shams University, 11566 Cairo, Egypt
*
†Email address for correspondence: amhamed73@hotmail.com
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Abstract

In this paper, a method of processing argon plasma images, obtained from the DC pseudo glow discharge technique, using two- and multiple-beam interference is suggested. This method is based on measuring the image fringe shift from the background interference fringes. Hence, this mapping of intensity shift is related to the electron density distribution of the argon plasma. Also, the refractive index of the plasma is computed from the electron density values. The contrast of the interferometer images in presence of plasma shift is investigated in both cases of two- and multiple-beam interference.

Type
Research Article
Information
Journal of Plasma Physics , Volume 81 , Issue 5 , October 2015 , 905810502
Copyright
© Cambridge University Press 2015 

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