Adiabatic frequency up-conversion of a powerful electromagnetic pulse producing gas ionization

Author

Gildenburg, V.B. ; Kim, A.V. ; Krupnov, V.A. ; Semenov, V.E. ; Sergeev, A.M. ; Zharova, N.A.

Author_Institution

Inst. of Appl. Phys., Russian Acad. of Sci., Nizhny Novgorod, Russia

Volume

21

Issue

1

fYear

1993

fDate

2/1/1993 12:00:00 AM

Firstpage

34

Lastpage

44

Abstract

The theory of strong frequency upconversion of the powerful ionizing electromagnetic radiation in gases is presented based on the modified nonlinear geometrical optics approximation. The permanent spectrum upshift versus propagation path, exceeding considerably the initial frequency, is demonstrated without strong wave dissipation for the cases of impact and field-induced ionization in the high-intensity field range. Reflectionless propagation into the supercritical plasma and broad-band tuning of the laser radiation are emphasized as highly promising physical applications of the phenomenon described

Keywords

ionisation of gases; laser beams; laser tuning; light propagation in plasma; optical frequency conversion; plasma production and heating by laser beam; broad-band tuning; field-induced ionization; frequency up-conversion; gas ionization; gases; high-intensity field range; impact ionisation; laser radiation; nonlinear geometrical optics approximation; permanent spectrum upshift; powerful electromagnetic pulse; propagation path; supercritical plasma; Electromagnetic propagation; Electromagnetic radiation; Frequency; Gases; Geometrical optics; Ionization; Laser tuning; Optical propagation; Plasma applications; Plasma waves;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/27.221099

Filename

221099