Investigation of first and second ionization on optical properties of atmospheric plasmas |
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| Authors: | Fatemeh Salimi Meidanshahi Khosro Madanipour Babak Shokri |
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| Institution: | 1. Shahid Beheshti University, G.C., Department of Physics, Tehran, Iran;2. Optical Measurement Central Lab. & Optics Research Group, Amirkabir University of Technology, Hafez Street, Tehran, Iran;3. Shahid Beheshti University, G.C., Laser and Plasma Research Institute, Tehran, Iran;1. The State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, Zhejiang, China;2. School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang, China;1. Department of Mechanical Engineering, University of British Columbia, 2054-6250 Applied Science Lane, Vancouver, British Columbia, Canada V6T 1Z4;2. Department of Electrical and Computer Engineering, University of British Columbia, 2332 Main Mall, Vancouver, British Columbia, Canada V6T 1Z4;1. Department of Physics, Periyar University- PG Extension Centre, Dharmapuri, Tamilnadu, India;2. Department of Physics, Chikkanna Government Arts College, Tiruppur, Tamilnadu, India;1. Department of Physics, Regional Centre, Anna University, Tirunelveli Region Tirunelveli, Tamilnadu, India;2. Department of Physics, chikkanna Government Arts College, Tiruppur, Tamilnadu, India;3. Department of Physics, Government Arts College, Dharmapuri, Tamilnadu, India;4. Institute of Applied Optics, Department of Physical Optics, Warsaw, Poland;5. National Institute of Telecommunications, Warsaw, Poland;1. Samara State Aerospace University, named after Academician S.P. Korolyov (National Research University), Samara, Russia;2. Institution of the Russian Academy of Sciences, Image Processing Systems Institute of the RAS, Samara, Russia;1. Laboratoire de Physicochimie de l’Atmosphère, Université du Littoral Côte d’Opale, 189A, Av. Maurice Schumann, 59140 Dunkerque, France;2. Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, 230031 Hefei, China;3. ETH Zurich, Institute for Quantum Electronics, Otto-Stern-Weg 1, CH-8093 Zurich, Switzerland |
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| Abstract: | In this paper, the relation between refractive index and other atmospheric plasma properties including electron, ion and molecule number densities and temperature are calculated. Considering the first and second ionization and the atmospheric air composition, the temperature dependence of the atmospheric plasma on refractive index is obtained by Saha equation. Also, in contrast to conventional models for evaluating electron number density by optical techniques, in which the refractive index of plasmas is approximately assumed equal to electron refractive index, this work is proposed for accurate and absolute measurement of electron density profile and determination of plasma region. |
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