Study Of Photonic Band Gap Property Of One-Dimensional Photonic Crystals

Photonic crystals is an artificial microstructure material which a kind of dielectric constant variable by a certain periodic. Photonic band-gap(PBG) is major characteristic of photonic crystals. Photonic crystals includes one dimension(1D),two dimension(2D) and three dimension(3D) photonic crystals according to .the special periodic dimension. One-dimensional (1D) photonic crystals are the basic configuration in which the refractive index is spatially modulated in 1D. 1D photonic crystal can be made easily due to its simple structure and has the properties of 2D and 3D photonic crystals. These novel optical materials will probably be crucial components in the field of optical communication, so the relevant theoretical researches are valuable and wide application perspectives are expected.The summary of this dissertation is as follows:1. In this paper, Production, conception, character, theory research method, application and preparation of photonic crystals are system reviewed.2. The basic differential equation of light spreads in photonic crystal and the theory of one dimensional optical transfer matrix were simply reported.3. Based on the structure of photonic crystals, we do some research about structure parameter effects on band gap of 1-D photonic crystals by transfer matrix method.4. In this paper, we analyzed the effects that structure parameter on the filtering capability of super narrow filter .The following conclusions are found: The smaller defect mode dielectric refractive index is, the better capability of super narrow band optical filer is ; The bigger two primitive of one-dimensional photonic crystals dielectric refractive index ratio is, the more narrow transmission band is ; When defect mode lies in the center of photonic crystal, the filtering capability is the best.5. A kind of model that two dielectrics were added in both ends of mirror defect photonic crystals were designed. This kind of structure can be used to fabricate multi-channel filtering, all-mirror optics, broad band stopping filtering, high-quality super-narrow filtering of photonic crystals. The model has better function than others reported at present.Through the work presented in the thesis, both the theory and the application of one-dimensional photonic crystals achieve some advances.