Characterization of dynamic and structured plasma using laser-collision induced fluorescence

Author

Barnat, E.V. ; Weatherford, B.R. ; Kolobov, V.I. ; Hubble, A.A. ; Foster, J.E.

Author_Institution

Sandia Nat. Labs., Albequerque, NM, USA

fYear

2014

fDate

25-29 May 2014

Firstpage

1

Lastpage

1

Abstract

Laser collision-induced fluorescence (LCIF)¹ is a powerful diagnostic which can be used for making temporally and spatially resolved measurements of electron densities in a plasma discharge. The technique, which involves the measurement of optical emission emanating from higher energy excited states due to the redistribution of the lower energy laser-excited state by collisions with energetic electrons, has been readily employed to study helium discharges. In this work, we report on recent systems studied with the LCIF diagnostic and describe efforts to extend the LCIF technique to argon based plasma systems.

Keywords

argon; discharges (electric); helium; plasma density; plasma diagnostics; Ar; He; LCIF diagnostic; argon based plasma system; dynamic plasma characterization; electron density; helium discharges; high energy excited states; laser-collision induced fluorescence; low energy laser-excited state; optical emission measurement; plasma discharge; structured plasma characterization; Discharges (electric); Fluorescence; Laser excitation; Measurement by laser beam; Optical variables measurement; Plasma measurements; Plasmas;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014 IEEE 41st International Conference on

Conference_Location

Washington, DC

Print_ISBN

978-1-4799-2711-1

Type

conf

DOI

10.1109/PLASMA.2014.7012462

Filename

7012462