Plasma creation by a powerful electromagnetic radiation of terahertz gyrotrons

Author

Bratman, V.L. ; Kalynov, Y.K. ; Koldanov, V.A. ; Litvak, A.G. ; Razin, S.V. ; Sidorov, A.V. ; Skalyga, V.A. ; Zorin, V.G.

Author_Institution

Inst. of Appl. Phys., RAS, Nizhny Novgorod, Russia

fYear

2011

fDate

26-30 June 2011

Firstpage

1

Lastpage

1

Abstract

Summary from only given. The study of the discharge in a focused beam of terahertz radiation in argon at pressures close to atmospheric was made. The range of breakdown electric fields and gas pressures at which the discharge occurs was determined. Discharge, had started at the focus of the beam, propagated in the region of weak fields, where the value of the intensity was substantially less than the breakdown one. The investigation of the discharge glow dynamics was made and it was shown that its front had moved towards the radiation with the speed of about 105 cm/sec. The estimation of the plasma density was made on the basis of the terahertz wave transmission coefficient measurements, and the value of the density exceeded the value of 10¹⁵ cm^-3. The features of the discharge excited by radiation of the terahertz frequency range and its possible applications are discussed.

Keywords

argon; atmospheric pressure; discharges (electric); gyrotrons; plasma density; plasma electromagnetic wave propagation; atmospheric pressure; breakdown electric fields; discharge; discharge glow dynamics; gas pressures; plasma creation; plasma density estimation; powerful electromagnetic radiation; terahertz gyrotrons; terahertz radiation; wave transmission coefficient measurements; Electromagnetics; Gyrotrons; Plasmas;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science (ICOPS), 2011 Abstracts IEEE International Conference on

Conference_Location

Chicago, IL

ISSN

0730-9244

Print_ISBN

978-1-61284-330-8

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2011.5992895

Filename

5992895