Instability Parameters of Optical Oscillation Frequency in Plasma Central Discharge and Periphery Region
ZHOU Zhu-Wen1, M. A. LIEBERMAN2, Sungjin KIM2
1Department of Physics, Guizhou Educational College, Guiyang 550003
2Department of Electrical Engineering and Computer Sciences-1770, University of California, Berkeley CA 94720, USA
Instability Parameters of Optical Oscillation Frequency in Plasma Central Discharge and Periphery Region
ZHOU Zhu-Wen1;M. A. LIEBERMAN2;Sungjin KIM2
1Department of Physics, Guizhou Educational College, Guiyang 550003
2Department of Electrical Engineering and Computer Sciences-1770, University of California, Berkeley CA 94720, USA
Abstract： We have observed relaxation oscillations in a capacitive discharge in Ar gas, connected to a peripheral ground chamber. The plasma oscillations observed from time-varying optical emission from the main discharge chamber show, for example, a high frequency (75.37kHz) relaxation oscillation, at 100mTorr and 8W absorbed power, and a low frequency (2.72Hz) relaxation oscillation, 100mTorr and 325W absorbed power. Time-varying optical emission intensity and plasma density are also detected with a Langmuir probe. The theoretical result agrees well with experiments.
ZHOU Zhu-Wen;M. A. LIEBERMAN;Sungjin KIM. Instability Parameters of Optical Oscillation Frequency in Plasma Central Discharge and Periphery Region[J]. 中国物理快报, 2006, 23(8): 2251-2254.
ZHOU Zhu-Wen, M. A. LIEBERMAN, Sungjin KIM. Instability Parameters of Optical Oscillation Frequency in Plasma Central Discharge and Periphery Region. Chin. Phys. Lett., 2006, 23(8): 2251-2254.
2006, Vol. 23 
