Nonlinear frequency coupling in dual radio-frequency driven atmospheric pressure plasmas

被引：57

作者：

Waskoenig, J. ^{[1
]}

Gans, T. ^{[1
]}

机构：

[1] Queens Univ Belfast, Ctr Plasma Phys, Belfast BT7 1NN, Antrim, North Ireland

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 18期

基金：

英国工程与自然科学研究理事会;

关键词：

atmospheric pressure; ionisation; plasma density; plasma sheaths; DISCHARGES; HELIUM; MODELS;

D O I：

10.1063/1.3425668

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Plasma ionization, and associated mode transitions, in dual radio-frequency driven atmospheric pressure plasmas are governed through nonlinear frequency coupling in the dynamics of the plasma boundary sheath. Ionization in low-power mode is determined by the nonlinear coupling of electron heating and the momentary local plasma density. Ionization in high-power mode is driven by electron avalanches during phases of transient high electric fields within the boundary sheath. The transition between these distinctly different modes is controlled by the total voltage of both frequency components. (C) 2010 American Institute of Physics. [doi:10.1063/1.3425668]

引用

页数：3

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