Study on emission spectrum of self-sustained volume discharge
-
1.
Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
-
Corresponding author:
ZUO Du-luo, zuoduluo@mail.hust.edu.cn
-
Received Date:
2012-11-09
Accepted Date:
2012-12-19
-
Abstract
In order to measure the evolution of gas temperature during self-sustained volume discharge, the second positive spectra of nitrogen was analyzed using fitting spectra method. Plasma time-domain resolution molecular spectra of two transversely excited atmospheric(TEA)gas laser discharge systems (excimer laser fast discharge system and TEA CO2 laser slow discharge system) were measured. Gas rotational temperature was fitted to obtain the data of gas temperature evolution of two discharge structures. The results show that the rising temperature is 92K while the total of inject energy density is 1.3105 J/m3 of excimer laser fast discharge system and the rising temperature is 50K while the total of inject energy density is 7104 J/m3 of TEA CO2 laser slow discharge system. The ratio of the rising temperature of these two systems is proportional to the raio of the inject energy density of these two systems. These results are helpful to study self-sustained volume discharge mechanism and improve discharge stability.
-
-
References
|
[1]
|
OSIPOV V V. Self-sustained volume discharge[J]. Physics-Uspekhi,2000,43(3): 221-241. |
|
[2]
|
APOLLONOV V V. High-power self-controlled volumne-discharge-based molecular lasers[J]. Optical Engineering,2004,43(1): 1-18. |
|
[3]
|
BILOIU C,SUN X,HARVEY Z,et al. An alternative method for gas temperature determination in nitrogen plasmas: fits of the bands of the first positive system(B3gA3u)[J]. Journal of Applied Physics,2007,101(7): 073303. |
|
[4]
|
YANG Ch G, XU Y Y, ZUO D L. Temperature characteristic of cathode sheath in high-pressure volumn discharge derived from emanuting shock wave[J]. Chinese Physics Letters,2012,29(12):125201. |
|
[5]
|
BILOIU C,SUN X,HARVEY Z,et al. Determination of rotational and vibrational temperatures of a nitrogen helicon plasma[J]. Review of Scientific Instruments,2006,77(10): 10F117. |
|
[6]
|
MARIOTTI D, SANKARAN R M. Perspective on atmospheric-pressure plasmas for nanofabrication[J]. Journal of Physics,2011,44(17):174023. |
|
[7]
|
MARIOTTI D, SANKARAN R M. Microplasmas for nanofabrication synthesis[J]. Journal of Physics,2010,D43(32):323001. |
|
[8]
|
LAROUSSI M,LU X P.Room-temperature atmospheric pressure plasma plume for biomedical applications[J]. Applied Physics Letter,2005,87(11): 113902. |
|
[9]
|
SAKAMOTO T,MATSUURA H,AKATSUKA H. Spectroscopic study on the vibrational population of N2 C3 and B3 states in a microwave nitrogen discharge[J]. Journal of Applied Physics,2007,101(2): 023307. |
|
[10]
|
HERZBERG G. Molecular spectra and molecular structureⅠ: spectra of diatomic molecules[M]. Malabar, India: Krieger,1989:159. |
|
[11]
|
ROUX F,MICHAUD F. High-resolution Fourier spectrometry of 14 N2: analysis of the (0-0),(0-1),(0-2),(0-3) bands of the C3u~B3g system[J]. Canadian Journal of Physics,1989,67(1):143. |
-
-
Proportional views
-
Map
DownLoad: