Manipulation of rotation for triangular plasma photonic crystals in dielectric barrier discharge

Abstract

Rotation manipulation in the fields of metamaterials and metasurfaces has led to a variety of striking properties. Here, we propose an efficient scheme for realizing rotation-controllable plasma metamaterials in dielectric barrier discharge. Rotating triangular plasma photonic crystals (RTPPCs) are obtained by self-organization of filaments in simply ambient air. Independent control of the angular velocity and the lattice constant of RTPPCs is realized. A phenomenological reaction–diffusion model with two coupled layers is established to reveal the underlying mechanism of RTPPCs. Moreover, the changes in the bandgaps with angular reorientation of RTPPCs are demonstrated by using microwave diagnosis. Experimental observations and numerical simulations are in good agreement. Our method provides an additional degree of freedom to tailor plasma metamaterials, which may find potential applications, such as integrated optical components, wireless communications, precision radiolocation, time-resolved imaging, and sensing.