A plasma photonic crystal bandgap device

Abstract

A fully tunable plasma photonic crystal is used to control the propagation of free space electromagnetic waves in the S to X bands of the microwave spectrum. An array of discharge plasma tubes forms a simple square crystal structure with the individual plasma dielectric constant tuned through variation in the plasma density. We show, through simulations and experiments, that transverse electric mode bandgaps exist, arising from the positive and negative dielectric constant regimes of the plasma, and that the respective bandgap frequencies can be shifted through changing the dielectric constant by varying discharge current density.

The 2017 Plasma Roadmap: Low temperature plasma science and technology

“…In combination with the ability to produce electron densities of 10 14 cm −3 , the characteristics of microstrip-driven microplasmas make them attractive for several purposes, including the production of the metastable rare gas atoms required for an optically-pumped laser [12]. It is also clear that the electromagnetic applications of single microplasmas and arrays, are quite broad and are expanding rapidly [13,14].…”

Physics-Based-Adaptive Plasma Model for High-Fidelity Numerical Simulations

“…Some notable examples include the current sheet behavior during geomagnetic reconnection [1,2], plasma photonic crystals [3,4], field-reversed configurations (FRC's) [5][6][7], and Z-pinches [8][9][10]. Reddell [2] showed that the distribution plasma function within the thin sheath boundary was not near Maxwellian, but regions inside the reconnected region or far away from the sheath were still near Maxwellian.…”

Waveguiding and bending modes in a plasma photonic crystal bandgap device

“…We have used these plasma tubes in prior work as tunable defect elements in an all-dielectric PC, 6 as well as in a full plasma photonic crystal bandgap device. 7 In the study, of Ref. 7, the defect-generated pass band frequency was adjusted by varying the estimated a Author to whom correspondence should be addressed.…”