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Chinese Physics Letters Volume 26 Number 11 Create an alert RSS this journal

Lan Chao-Hui et al 2009 Chinese Phys. Lett. 26 115201 doi:10.1088/0256-307X/26/11/115201

Effect of Air Gap on Uniformity of Large-Scale Surface-Wave Plasma

Lan Chao-Hui1, Hu Xi-Wei2, Jiang Zhong-He2 and Liu Ming-Hai2

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Abstract References

PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES

The effect of air gap on the uniformity of large-scale surface-wave plasma (SWP) in a rectangular chamber device is studied by using three-dimensional numerical analyses based on the finite difference time-domain (FDTD) approximation to Maxwell's equations and plasma fluid model. The spatial distributions of surface wave excited by slot-antenna array and the plasma parameters such as electron density and temperature are presented. For different air gap thicknesses, the results show that the existence of air gap would severely weaken the excitations of the surface wave and thereby the SWP. Thus the air gap should be eliminated completely in the design of the SWP source, which is opposite to the former research results.


PACS

52.35.Mw Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.)

52.65.Kj Magnetohydrodynamic and fluid equation

52.25.-b Plasma properties

52.50.Dg Plasma sources

52.40.Fd Plasma interactions with antennas; plasma-filled waveguides

Subjects

Plasma physics

Dates

Issue 11 (November 2009)

Received 9 July 2009



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