Oscillation modes of direct current microdischarges with parallel-plate geometry

被引：26

作者：

Stefanovic, Ilija ^{[1
]}

Kuschel, Thomas ^{[1
]}

Skoro, Nikola ^{[2
]}

Maric, Dragana ^{[2
]}

Petrovic, Zoran Lj ^{[2
]}

Winter, Joerg ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Inst Expt Phys 2, D-44781 Bochum, Germany

[2] Univ Belgrade, Inst Phys, Belgrade 11080, Serbia

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 110卷 / 08期

关键词：

CURRENT ELECTRICAL DISCHARGES; PLANE ELECTRODES; DC DISCHARGES; LOW-PRESSURE; BEHAVIOR; ANODE; ARGON;

D O I：

10.1063/1.3656449

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Two different oscillation modes in microdischarge with parallel-plate geometry have been observed: relaxation oscillations with frequency range between 1.23 and 2.1 kHz and free-running oscillations with 7 kHz frequency. The oscillation modes are induced by increasing power supply voltage or discharge current. For a given power supply voltage, there is a spontaneous transition from one to other oscillation mode and vice versa. Before the transition from relaxation to free-running oscillations, the spontaneous increase of oscillation frequency of relaxation oscillations form 1.3 kHz to 2.1 kHz is measured. Fourier transform spectra of relaxation oscillations reveal chaotic behavior of microdischarges. Volt-ampere (V-A) characteristics associated with relaxation oscillations describes periodical transition between low current, diffuse discharge, and normal glow. However, free-running oscillations appear in subnormal glow only. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3656449]

引用

页数：6

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