Study of the optical properties of Aluminum zigzag thin filmsvia transfer ‎matrix

The transfer matrix method adopted to solve the linearly polarized light propagation problem in order to study the occurrence of absorption transitions for Aluminum zigzag thin films. For different incident light, azimuthal angles, arms number and lengths, the optical results showed that the intensity of absorption peak of s-polarization remains constant as the incident light angle increases, while the intensity of absorption peaks for p-polarization increases. According to the variations of spectra for different azimuthal angles, the results of p-polarization are opposite to s polarization. Also, changing the number of arms from two to three, three to four and four to five, shift the peaks of absorption spectrum towards longer (red shift), shorter (blue shift) and longer wavelengths (red shift), respectively. This behavior can be observed for zigzag nano-structure with different arm lengths.