Analysis of 2D plasma-filled metallic photonic crystal cavity

A two-dimensional plasma-filled metallic photonic crystal cavity structure is studied. Particle in cell technique (PIC) is used to establish the physical model. The field distribution properties, the mode frequency and the amplitude of the electronic field are illustrated under plasma-filled situation. Results show that the electric field intensity of each mode in cavity decreases with the increase of plasma density, the mode frequency increases with the increase of the normalized frequency, and different source positions stimulate different modes.