2017/09/30 by Jan Trieschmann, Thomas Mussenbrock
Engineering · Physics and Astronomy · #Band diagram #Band gap #Dielectric #Dispersion relation #Electromagnetic Simulation and Numerical Methods #Excitation #Lattice constant #Photonic Crystals and Applications #Photonic crystal #Plasma #Plasmonic and Surface Plasmon Research #Scaling #physics.optics #physics.plasm-ph
paper · pdf · doi:10.1063/1.5055282
published as Journal of Applied Physics 124, 173302 (2018)
openalex created_date 2017/09/25 · arxiv created 2018/09/06 · openalex publication_date 2018/11/06 · arxiv updated 2018/11/15 · openalex updated_date 2026/08/05
The dispersion relation of plasma and plasma-dielectric photonic multilayer structures is approached in terms of a one-dimensional Particle-in-Cell simulation. For several plasma-dielectric configurations, the system response is obtained using a pulsed excitation and a subsequent two-dimensional frequency analysis. It is first shown that the dispersion relation of a single, homogeneous plasma slab is well described by the cold-plasma model even at a low pressure of 1 Pa. The study is extended to the simulation of plasma photonic crystals with a variety of configurations based on the work of Hojo and Mase [J. Plasma Fusion Res. 80, 89 (2004)]. Considering a one-dimensional plasma photonic crystal made from alternating layers of dielectric and homogeneous plasma slabs, it is shown that the assumption of a cold-plasma description is well justified also in this case. Moreover, in this work, the results are reformatted and analyzed in a band diagram representation, in particular, based on the lattice constant a. Based on these considerations, a scaling invariant representation is presented, utilizing a generalized set of parameters. The study is completed with an exemplary comparison of three plasma-dielectric photonic crystal configurations and their corresponding band diagrams.