One-dimensional electromagnetic band gap plasma structure formed by atmospheric pressure plasma inhomogeneities

The ability to use plasma columns of pulse discharges in argon at atmospheric pressure to form a one-dimensional electromagnetic band gap structure (or electromagnetic crystal) in the X-band waveguide is demonstrated. We show that a plasma electromagnetic crystal attenuates a microwave propagation i...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physics 2017-08, Vol.122 (8)
Main Authors: Babitski, V. S., Callegari, Th, Simonchik, L. V., Sokoloff, J., Usachonak, M. S.
Format: Article
Language:English
Subjects:
Applied physics
Atmospheric pressure
Collision dynamics
Columns (structural)
Crystal structure
Discharge
Dynamic control
Electron energy
Gas temperature
High power microwaves
Inhomogeneity
Plasma
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The ability to use plasma columns of pulse discharges in argon at atmospheric pressure to form a one-dimensional electromagnetic band gap structure (or electromagnetic crystal) in the X-band waveguide is demonstrated. We show that a plasma electromagnetic crystal attenuates a microwave propagation in the stopband more than by 4 orders of magnitude. In order to obtain an effective control of the transmission spectrum comparable with a metallic regular structure, the electron concentration in plasma inhomogeneities should vary within the range from 1014 cm−3 to 1016 cm−3, while gas temperature and mean electron energy must be in the range of 2000 K and 0.5 eV, respectively, to lower electron collision frequency around 1010 s−1. We analyze in detail the time evolution response of the electromagnetic crystal according to the plasma parameters for the duration of the discharge. The interest of using atmospheric pressure discharges is to increase the microwave breakdown threshold in discharge volumes, whereby it becomes possible to perform dynamic control of high power microwaves.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4999988