Optimization of One Dimensional Photonic Crystal Structure with Light Reflection Characteristics

Photonic crystals are optical materials with repeating structures. This paper reviews the light reflection characteristics of one dimensional (lD) photonic crystals with defects in the visible region. Designing the ID photonic crystal for reflection based applications such as mirrors and reflection coatings, knowledge of photonic bandgap and the reflection characteristics in the periodic structure is essential. Modeling of flow of light in photonic crystals are studied with Comsol simulations which is based on FEM method. An observational study on reflection properties of ID photonic crystal reveals the impacts of periodic layer thickness, refractive index, and periodicity on light. The reflection spectrum of the photonic crystal structure with defects have been analyzed and a deep understanding of the photonic crystal with defect has been achieved. In this paper it is proposed that consistently high reflection can be achieved along with the structure optimization using defects.