Abstract

A surface-wave-sustained discharge created by using a <i>surfatron</i> device in a tube open to the atmosphere can be used to maintain a microwave (2.45 GHz) plasma at atmospheric pressure at powers of less than 300 W. The TIA (<i>Torche à Injection Axiale</i>) is a device also producing a plasma that, moreover, permits us to work at high power (higher than 200 W and up to 1000 W). A study of the departure from the thermodynamic equilibrium existing in the argon plasmas created by both devices has been done by using optical emission spectroscopy techniques in order to characterize them and to evaluate their possible advantages when they are used for applied purposes.

Microwave-enhanced laser-induced air plasma at atmospheric pressure

Yuji Ikeda and Joey Kim Soriano
Opt. Express 30(19) 33756-33766 (2022)

Low-temperature atmospheric pressure argon plasma treatment and hybrid laser-plasma ablation of barite crown and heavy flint glass

Christoph Gerhard, Sophie Roux, Stephan Brückner, Stephan Wieneke, and Wolfgang Viöl
Appl. Opt. 51(17) 3847-3852 (2012)

Semiconductor laser-based measurements of quench rates in an atmospheric pressure plasma by using saturated-fluorescence spectroscopy

D. S. Baer and R. K. Hanson
Appl. Opt. 32(6) 948-955 (1993)

Spectroscopic investigation of laser-initiated low-pressure plasmas in atmospheric gases

R. A. Armstrong, R. A. Lucht, and W. T. Rawlins
Appl. Opt. 22(10) 1573-1577 (1983)

Fluorescence diagnostics for atmospheric-pressure plasmas using semiconductor lasers

Douglas S. Baer, H. Andrew Chang, and Ronald K. Hanson
J. Opt. Soc. Am. B 9(11) 1968-1978 (1992)