Tunable annular plasma photonic crystals in dielectric barrier discharge

Abstract

We demonstrate an effective method for realization of robust, tailorable annular plasma photonic crystals in dielectric barrier discharge (DBD) with two water electrodes. Fast reconfiguration between triangular lattice, annular lattice, core-annular lattice and concentric-annular lattice has been achieved. An active control on the structure of plasma elements is realized by solely changing the applied voltage. The changes of photonic band gaps with reconfiguration of different annular plasma photonic crystals have been studied both experimentally and numerically. The band gaps between 28.0-30.0 GHz for the core-annular lattice and the concentric-annular lattice are experimentally verified. A phenomenological reaction-diffusion model with two nonlinear-coupled interacting layers is established to mimic the formation of various plasma structures. Experimental observations and numerical simulation are in good agreement. Our approach provides a unique strategy to create reversibly deformable annular plasma photonic crystals, which may offer new capabilities and serve as a promising platform for various applications.

Spatiotemporally controllable honeycomb superlattice plasma photonic crystals in dielectric barrier discharge

“…Recently, there has appeared great interest in plasma photonic crystals (PPCs), which are periodic lattices alternating plasmas and dielectric materials [12,13]. The integration of plasmas leads to advantageous properties for PPCs, such as dynamical tunability [14], negative refraction [15], and rapid reconfiguration [16]. Applications of PPCs in plasma stealth aircraft, microwave filter, multichannel communication, and highly sensitive sensors have been proposed [17][18][19][20][21][22][23].…”

“…Dielectric barrier discharge (DBD) is one of the most significant systems to realize PPCs. A variety of plasma lattices such as square, hexagonal, and annular lattices have been obtained in DBD by using very simple device [16,[24][25][26]. The high nonlinearity of the system facilitates the rich diversity of the lattices [27].…”

“…The high nonlinearity of the system facilitates the rich diversity of the lattices [27]. Besides, rapid reconfiguration between different PPCs is allowed in DBD by readily modulating the lattice constant, electron density, or structural configurations [16,[24][25][26][27]. Only a few seconds are required for the reconfiguration by virtue of the short ionization and recombination time scales in plasmas.…”

Effects of square spatial periodic forcing on oscillatory hexagon patterns in coupled reaction–diffusion systems

“…47 A physical analogy is the dielectric barrier discharge system, which is generally composed of a discharge layer and a dielectric layer. 48 The interaction of surface charges and volume charges gives rise to a huge variety of spatio-temporal patterns. 49 Motivated by the fact that most realistic systems consist of different layers, in this paper, we have developed a coupled reaction diffusion model with two different sub-models.…”

“…47 A physical analogy is the dielectric barrier discharge system, which is generally composed of a discharge layer and a dielectric layer. 48 The interaction of surface charges and volume charges gives rise to a huge variety of spatio-temporal patterns. 49…”