Investigation and Comparison of Band Gap for Photon Crystals by Wave-Plate Method with Different Backgrounds

Hexagonal photon crystal structure with seven nanorods on each side where the rods are arranged in air and with a triangular arrangement was studied. The structure has a symmetry, and each rod can be repeated in any direction, and the unit cell in two dimensions of the surface contains two basic vectors and is actually the smallest component in terms of surface which can be reconstructed and repeated to reconstruct the whole photon crystal. Usually, the simplest selection for a triangular photon crystal is a rhombus with sides equal to the lattice constant (a = ۰.۵ μm). The plate wave development method by energy band simulation of two-dimensional photonic crystals using RSOFT software has been proposed. The RSoft is the core program in the RSoft Photonics Suite and acts as a control program for RSoft’s passive. Photonic crystals, Zinc Oxide, Silicon and Zinc Oxide - Silicon by different refractive index (hazardous toxic gases) and air were considered as background. The full band gap and wavelengths that do not allow photon crystals to enter were determined. Also, the correlation spectrum and the wavelength transmission direction with different relative power for each photon crystal were determined.

Keywords:

Wave-plate method , Band gap , Photon crystals , Different backgrounds