Analysis of different models of Photonic Crystal structures for sensor applications

The Photonic crystals have become a rapidly growing area of research with their vast application areas. A Photonic crystal exhibits characteristics that depends on various parameters such as crystal lattice, dielectric used, defects dimensions, propagation of light etc. In this work, a set of four structures are taken and these structure designs are simulated using MEEP and MATLAB software tools. A report on various parameters of different crystal structures which are generally used for sensor designing applications are given along with their Q-factors and sensitivity values which helps designers to choose a better structure depending on the application requirements. The results are analysed, and discussed in terms of Q-factor and sensitivity based on transmission pattern. In a Photonic crystal structure, there are number of geometrical and electrical parameters which can critically affect crystals characteristics. An extensive parametric study of these parameters was done through rigorous simulation on MEEP tool. During simulation, none of the parameters were varied, which helped us in understanding the influence of each geometrical difference in a structure, with the help of simulation, we obtained best possible Photonic crystal structure.