Narrow stop band optical filter using one-dimensional regular Fibonacci/Rudin Shapiro photonic quasicrystals

摘要

One-dimensional deterministic aperiodic multilayered photonic crystals can be formed by stacking together dielectric layers of several different types according to sub-stitutional generalized Fibonacci or Rudin Shapiro sequences. An efficient numerical technique based on calculus of transfer matrix of multiple layers is used to study the formation of optical gaps. The quasi-periodicic distribution gives some interesting optical properties and offers a multitude of adjacent pseudo-band gaps in different frequency range. The potential of photonic structure are explored by varying the structural parameters. The presence of band gaps due to long-range correlations. Further analysis shows that the central frequency of transmission band (stop band) can be changed by varying the type of distribution of two considered layers which formed the all quasi-photonic crystals cells and the order of quasiperiodic sequences. The structure is exploited to design selective optical filters with narrow band gaps and polychromatic stop band filters. These results make aperiodic photonic structures very attractive for the engineering of novel passive photonic.