Main field of study: 011200 Physics
Area of specialization: Physical Optics and Lasers
Department of Optics
Scientific advisor: prof. V.M. Nemets
Reviewer: prof. V.S. Soukhomlinov

An investigation of luminosity spectrum dynamics of laser-MW discharge in supersonic air flow
Steshenko K. N.

In connection with the prospect of thermal excitation of the medium in order to reduce resistance in the air and rocket engineering, it has been tasked to study the plasma discharge generated by the combined method - microwave-induced discharge controlled by laser breakdown. 
In the first part of research work a series of experiments has done to compare different between discharges in a flow and without it. The studies were conducted using schlieren and spectroscopic methods.
In the second part we have studied the dynamics of the formation of 0-0 transition in second positive band of molecular nitrogen and the atomic oxygen line. According to the band of nitrogen rotational and translational temperatures were determined. We identified problems with finding the dynamics of temperature in discharge, because the nitrogen luminosity observed only in the first microsecond of the discharge, but we can’t find oxygen line profile using created experimental facility. 

The list of publications
1. I.Ch. Mashek, V.A. Lashkov, K.N. Steshenko, R.S. Khoronzhuk, 
I.O. Konushenko. Investigation of Luminosity Spectrum Dynamics of MW Discharge in Supersonic Air Flow// 14th International Workshop on Magneto-Plasma Aerodynamics, Book of abstracts, Moscow, Russia (April, 2015). (In press)