Volumetric Near-Field Microwave Plasma Generation | Zendy

R. J. Exton | Zendy; R. Jeffrey Balla | Zendy; G. C. Herring | Zendy; S. Popović | Zendy; Leposava Vušković | Zendy

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Volumetric Near-Field Microwave Plasma Generation

Author(s) -

R. J. Exton,

R. Jeffrey Balla,

G. C. Herring,

S. Popović,

Leposava Vušković

Publication year - 2003

Publication title -

34th aiaa plasmadynamics and lasers conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2003-4181

Subject(s) - microwave , plasma , field (mathematics) , computer science , materials science , physics , telecommunications , nuclear physics , mathematics , pure mathematics

A periodic series of microwave-induced plasmoids is generated using the outgoing wave from a microwave horn and the reflected wave from a nearby on-axis concave reflector. The plasmoids are spaced at halfwavelength separations according to a standing-wave pattern. The plasmoids are enhanced by an “effective focusing” in the near field of the horn (Fresnel region) as a result of a diffractive narrowing. Optical imaging, electron density, and rotational temperature measurements characterize the near field plasma region. Volumetric microwave discharges may have application to combustion ignition in scramjet engines. A. Introduction

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