Pulsed microwave-driven argon plasma jet with distinctive plume patterns resonantly excited by surface plasmon polaritons
Chen Zhao-Quan (陈兆权)a b, Yin Zhi-Xiang (殷志祥)a, Xia Guang-Qing (夏广庆)c, Hong Ling-Li (洪伶俐)a, Hu Ye-Lin (胡业林)a, Liu Ming-Hai (刘明海)d, Hu Xi-Wei (胡希伟)d, A. A. Kudryavtsevb
a College of Electrical & Information Engineering, Anhui University of Science and Technology, Huainan 232001, China; b Faculty of Physics, St. Petersburg State University, St. Petersburg, 198504, Russia; c State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, China; d State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract Atmospheric lower-power pulsed microwave argon cold plasma jets are obtained by using coaxial transmission line resonators in ambient air. The plasma jet plumes are generated at the end of a metal wire placed in the middle of the dielectric tubes. The electromagnetic model analyses and simulation results suggest that the discharges are excited resonantly by the enhanced electric field of surface plasmon polaritons. Moreover, for conquering the defect of atmospheric argon filamentation discharges excited by 2.45-GHz of continued microwave, the distinctive patterns of the plasma jet plumes can be maintained by applying different gas flow rates of argon gas, frequencies of pulsed modulator, duty cycles of pulsed microwave, peak values of input microwave power, and even by using different materials of dielectric tubes. In addition, the emission spectrum, the plume temperature, and other plasma parameters are measured, which shows that the proposed pulsed microwave plasma jets can be adjusted for plasma biomedical applications.
(Emission, absorption, and scattering of electromagnetic radiation ?)
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11105002 and 61170172), the Natural Science Foundation of Anhui Province, China (Grant Nos. 1408085QA16 and 1408085ME101), the China Postdoctoral Science Foundation (Grant No. 2014M551788), and the Open-end Fund of State Key Laboratory of Advanced Electromagnetic Engineering and Technology (HUST), China (Grant No. GZ1301).
Chen Zhao-Quan (陈兆权), Yin Zhi-Xiang (殷志祥), Xia Guang-Qing (夏广庆), Hong Ling-Li (洪伶俐), Hu Ye-Lin (胡业林), Liu Ming-Hai (刘明海), Hu Xi-Wei (胡希伟), A. A. Kudryavtsev Pulsed microwave-driven argon plasma jet with distinctive plume patterns resonantly excited by surface plasmon polaritons 2015 Chin. Phys. B 24 025203
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