Study on Argon Plasma Jets at Atmospheric Pressure in Ambient Air Excited by Surface Waves

Author

Zhen Zheng ; Zhaoquan Chen ; Pei Liu ; Ming Chen ; Guodong Wang ; Qiyan Zhou ; Fulcheri, Laurent ; Minghai Liu

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

Volume

42

Issue

4

fYear

2014

fDate

Apr-14

Firstpage

911

Lastpage

916

Abstract

A novel method to produce strong and effective argon plasma jets in air is reported. By adjusting the structure and setting the location of a copper wire in the quartz tube, an intensive jet composed of two jets about 2.4 cm is produced with microwave power of 50 W. The microwave frequency is 2.45 GHz. Four twisty plasma jets about 2.0 cm for argon discharge are generated in four tubes at incident power of 120 W. A plasma ball of air discharge about 0.5 cm in radii is generated in the tube at the power of 100 W. The simulated distribution of electric field in the tube with a folded copper wire is consistent with the prediction of surface plasmon polaritons. Spectral diagnosis of the plasma jets is also discussed in this paper.

Keywords

argon; high-frequency discharges; plasma diagnostics; plasma jets; plasma sources; plasma-wall interactions; polaritons; surface plasmons; Ar; air discharge; argon discharge; argon plasma jets; copper wire location; electric field distribution; folded copper wire; frequency 2.45 GHz; incident power; intensive jet; microwave frequency; microwave power; plasma ball; power 100 W; power 120 W; power 50 W; pressure 1 atm; quartz tube; spectral diagnosis; surface plasmon polariton prediction; surface waves; twisty plasma jets; Argon; Copper; Discharges (electric); Electron tubes; Plasmas; Surface discharges; Wires; Discharge array; plasma jet; spectral analysis; surface plasmon polaritons (SPPs); surface plasmon polaritons (SPPs).;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2013.2295837

Filename

6767127