A low power microwave room-temperature air plasma jet at atmospheric pressure

被引：3

作者：

Wu, Li ^{[1
]}

Zhang, Xianyu ^{[1
]}

Liu, Tao ^{[1
]}

Zhang, Wencong ^{[2
]}

Tao, Junwu ^{[3
]}

Cheng, Fei ^{[1
]}

机构：

[1] Sichuan Univ, Coll Elect & Informat Engn, Chengdu 610065, Peoples R China

[2] Guiyang Univ, Sch Elect & Commun Engn, Guiyang 550005, Peoples R China

[3] Univ Toulouse, LAPLACE Lab Plasma & Convers Energie, INPT ENSEEIHT, F-31071 Toulouse, France

来源：

APPLIED PHYSICS LETTERS | 2023年 / 123卷 / 03期

基金：

中国国家自然科学基金;

关键词：

This research was financially supported by the Natural Science Foundation of Sichuan (Grant No. 2023NSFSC0707); the National Natural Science Foundation of China (Grant No. 62001130); the Joint Project of Sichuan University and Suining Municipal People's Government (Grant No. 2021CDSN-11); and the Fundamental Research Funds for the Central Universities (Grant No. 2021CDSN-11-SCU);

D O I：

10.1063/5.0152898

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An atmospheric pressure low power microwave-induced air plasma source at 2.45 GHz is presented in this Letter. The device was capable of self-igniting air and generating plasma with only 50 W microwave input power and without any extra trigger. Its sustaining power was as low as 10 W, and the gas temperature of plasma tail flame measured by a fiber optic thermometer was about 32 degrees C. Spectroscopic measurements showed strong OH(A(2)S(+)? X-2?) bands at 306-310 nm and oxygen atomic lines O-I (3p5P? 3s5S) at 777.1 nm and O-I (3p3P? 3s3S) at 844.6 nm. NO- ?(A(2)S(+)? X-2?(r)) from 200 to 300 nm was also detected in this air plasma jet. This portable plasma apparatus offers potential for air plasma applications in the biomedical fields.

引用

页数：4

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