Using terahertz radiation to detect OH radicals and NO molecules in flames

The possibility of detecting OH radicals and stable paramagnetic NO species in flames using the effect of rotation of the polarization plane of terahertz radiation (1–10 THz) in a magnetic field (Faraday effect) was experimentally demonstrated. Experimental data on detection of NO in a cell and OH r...

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Bibliographic Details
Published in:Combustion, explosion, and shock waves explosion, and shock waves, 2010-03, Vol.46 (2), p.149-153
Main Authors: Chesnokov, E. N., Aseev, O. S., Korobeinichev, O. P., Yakimov, S. A., Knyaz’kov, D. A., Shmakov, A. G.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Classical Mechanics
Combustion
Control
Dynamical Systems
Engineering
Explosions
Faraday effect
Magnetic fields
Physical Chemistry
Physics
Physics and Astronomy
Planes
Polarization
Radicals
Scattering
Vibration
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Summary:The possibility of detecting OH radicals and stable paramagnetic NO species in flames using the effect of rotation of the polarization plane of terahertz radiation (1–10 THz) in a magnetic field (Faraday effect) was experimentally demonstrated. Experimental data on detection of NO in a cell and OH radicals in an atmospheric-pressure H 2 /O 2 /N 2 flame using this method are given. The proposed method can be used to study highly scattering media which are opaque in the visible region, for example, dusty or sooty flames.
ISSN:0010-5082
1573-8345
DOI:10.1007/s10573-010-0023-7