Emission spectrum diagnostics for nitrogen plasmas generated by pulsed microwave discharge

Qiu Feng; Yan Eryan; Meng Fanbao; Liu Minghai; Ma Hongge

doi:10.3788/HPLPB201426.023004

Volume 26 Issue 02

Jan. 2014

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Article Navigation > High Power Laser and Particle Beams > 2014 > 26(02): 023004

Wu Zhaoyang, Chen Zhigang, Xue Changjiang, et al. Experimental research on GaAs photoconductive semiconductor switches triggered by laser diode[J]. High Power Laser and Particle Beams, 2012, 24: 635-638. doi: 10.3788/HPLPB20122403.0635

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Qiu Feng, Yan Eryan, Meng Fanbao, et al. Emission spectrum diagnostics for nitrogen plasmas generated by pulsed microwave discharge[J]. High Power Laser and Particle Beams, 2014, 26: 023004. doi: 10.3788/HPLPB201426.023004

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Emission spectrum diagnostics for nitrogen plasmas generated by pulsed microwave discharge

doi: 10.3788/HPLPB201426.023004

1.
Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China;
2.
State Key Laboratory of Advanced Electromagnetic Engineering and Technology,Huazhong University of Science and Technology,Wuhan 430074,China

Received Date: 2013-08-07
Rev Recd Date: 2013-11-11
Publish Date: 2014-02-15

Abstract

Abstract

Emission spectrum measurement and simulation are conducted to derive the vibration, rotation and electronic excitation temperature of nitrogen plasmas generated in microwave discharge with different pulse width and pressure. At the pressure of 266~400 Pa, the vibration temperature of plasmas is (2700100) K, electronic excitation temperature is (0.320.015) eV. Rotation temperature rises with the rising of pulse width, the maximum rotation temperature measured in this experiment is 370 K. Vibration temperature and electronic excitation temperature trend to decrease at the same time at the pressure away from 266～400 Pa, but rotation temperature trends to increase. This means electronic excitation temperature and vibration temperature have a strong relationship.
- vibrational temperature,
- rotational temperature,
- electronic excitation temperature,
- microwave-pulsed discharge,
- spectrum measurement

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