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

作者：Chesnokov E N^*; Aseev O S; Korobeinichev O P; Yakimov S A; Knyaz'kov D A; Shmakov A G

来源：Combustion, Explosion and Shock Waves, 2010, 46(2): 149-153.

DOI：10.1007/s10573-010-0023-7

• free electron laser
• terahertz radiation
• flame
• paramagnetic species
• Faraday effect
• hydrogen combustion
• OH detection

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.

• 出版日期2010-3