DC atmospheric pressure glow microdischarges in the current range from microamps up to amperes

Arkhipenko, V. I.; Kirillov, A. A.; Safronau, Y.A.; Simonchik, L. V.

doi:10.1140/epjd/e2010-00266-5

Cited by 39 publications

(46 citation statements)

References 25 publications

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“…7) even at atmospheric pressure. This is quite different from atmospheric-pressure discharges between plane-parallel electrodes in noble gases [34] and in air as shown in Figure 3 [31]. This means, Fig.…”

Section: Micro-glow Discharges Between a Flat Cathode And Ring-shamentioning

confidence: 70%

“…This process repeats itself and causes an oscillating (selfpulsing) behavior, with a frequency dependent on the RC time of the circuit [34]. Figure 2 shows an extended area of high luminosity close to the cathode, which has been identified as the negative glow, a plasma of relatively high conductivity bordering the cathode fall area.…”

Section: Figmentioning

confidence: 99%

“…Upper part: oscillating discharges; lower part: stable, normal glow discharges. The numbers in the brackets denote the time of open camera shutter in seconds [34]. current levels below the transition from glow-to-arc, generally obtained by using a ballast resistor.…”

Section: Figmentioning

confidence: 99%

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20 years of microplasma research: a status report

Schoenbach

Becker²

2016

Eur. Phys. J. D

176

112

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Abstract. The field of microplasmas gained recognition as a well-defined area of research and application within the larger field of plasma science and technology about 20 years ago. Since then, the activity in microplasma research and applications has continuously increased. A survey of peer reviewed papers on microplasmas published annually shows a steady increase from fewer than 20 papers in 1995 to about 75 in 2005 and more than 150 in 2014. This count excludes papers that deal exclusively with technological applications where the microplasma is used solely as a tool. This topical review aims to provide a snap shot of the current state of microplasma research and applications. Given the rapid proliferation of microplasma applications, the topical review will focus primarily on the status of microplasma science and our understanding of the physics principles that enable microplasma operation. Where appropriate, we will also address microplasma applications, however, we will limit the discussion of microplasma applications to examples where the application is closely tied to the plasma science. No attempt is made to provide a comprehensive and in-depth review of the diverse range of all microplasma applications, except for the inclusion of a few key references to recent reviews of microplasma applications.

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Section: Micro-glow Discharges Between a Flat Cathode And Ring-shamentioning

confidence: 70%

Section: Figmentioning

confidence: 99%

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20 years of microplasma research: a status report

Schoenbach

Becker²

2016

Eur. Phys. J. D

176

112

View full text Add to dashboard Cite

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“…The current also exhibits a jump as the T-line mode begins. While the voltage is expected to depend on the particular gas, it is important to note that these microwave discharge voltages are an order of magnitude lower those found in DC microplasmas [1][2][3][4][5][6]. Finally, with the aid of the model we investigate our hypothesis that the SRR-mode discharge acts to shortcircuit the resonator.…”

Section: Microwave Circuit Analysismentioning

confidence: 94%

“…Many microplasma sources are driven by direct current (DC) [1][2][3][4][5][6] or pulsed DC power supplies [7,8]. Microwave microplasma sources [9][10][11][12][13][14][15][16][17][18][19][20], while more complex to design, can provide some tangible benefits.…”

Section: Introductionmentioning

confidence: 99%

Instability control in microwave-frequency microplasma

Miura

Hopwood

2012

Eur. Phys. J. D

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Abstract. Atmospheric argon microplasmas driven by 1.0 GHz power were studied by microwave circuit analyses and spatially-resolved optical diagnostics. These studies illuminate the mechanisms responsible for microplasma stability. A split-ring resonator (SRR) microplasma source is demonstrated to reflect excess microwave power, preventing the ionization overheating instability while limiting electron density to approximately 1 × 10 14 cm −3 and OH rotational temperature to 760 K at 0.76 W. Providing the SRR microplasma with an electrical path to ground, however, allows the microplasma to transition from the SRR mode to the so-called transmission line mode (T-line). This transition is due to matching of the microplasma and transmission line impedances. The higher power T-line mode supports a more intense microplasma with electron density of 1 × 10 15 cm −3 and OH rotational temperature of 1480 K with 15 W absorbed power. While the SRR mode is optimized for ignition and sustaining a stable nonequilibrium plasma, and T-line mode is better suited for driving a hot, high density microplasma. The estimated microwave discharge voltages were 15 V and 35 V in SRR mode and T-line mode, respectively, and the voltages are rather independent of input power. Microplasma stability is due to a combination of impedance mismatching and direct control of power, both inherent to microwave circuitry.

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