Abstract
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.
| Original language | English |
|---|---|
| Article number | 181501 |
| Pages (from-to) | 181501-181501-3 |
| Number of pages | 3 |
| Journal | Applied Physics Letters |
| Volume | 96 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 03 May 2010 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)