Negative Refraction, Subwavelength Lensing Effect and Total Mirror with a Photonic Crystal Structure

We have presented the investigation on the slab of photonic crystals that was made of a honeycomb lattice of silicon embedded in free space. For the simulation of this structure the two-dimensional finite-difference time-domain (FDTD) method was used. This arrangement has shown that with suitable choice of frequency can have negative refraction with an metamedium effect with n=−1. In this conditions, in TE polarization can act as total mirror and in TM polarization can act as superlens. In a certain frequency, this type of photonic crystal structure acts as left handed martial that they were named metamaterials. A wide range effects were studied by this structure. To show these unusual phenomena, we analyzed the contour map and solid model of electric field and magnetic field for a photonic crystals structure. This structure has negative refraction of light, subwavelength lensing effect and 100% reflector. These feathers are in metamaterials that also can be seen in photonic crystals.