Research Of Interaction Between Polarized Light And Flat-shaped Chiral Micro-nano Structures

In recent years, the chiral structure and the metal micro-nano structure havebecome hot points, there is little research on the combination of these two structures.This thesis combines several research hotspots, such as chiral metal structure, opticalpolarization response and so on. Study the interaction between the different opticalpolarization and chiral metal micro-nano structures, to design some structures inorder to achieve a better optical properties and negative refraction. Details are asfollows:We research interaction between Bull's-eye structure and linearly polarized light,radial polarized light, circularly polarized light. The Bull's-eye structure has afocusing effect which we can obtain by field distribution. We calculate the focallength in these kinds polarized light incident and find that the results of the fielddistribution and the focal length under different polarized light are different. But Theresult of the interaction between the left and right circularly polarized light and thestructure is no difference.We design two kinds of monolayer chiral metal micro-nano structures(Archimedes spiral structure and Rotating petal structure) and research the differentresults of the interaction between the left and right circularly polarized light and thesestructures.We using the different results of the interaction between the left and rightcircularly polarized light and two kinds of monolayer chiral metal micro-nanostructures design two kinds of multilayer chiral metal micro-nano structures(Rotating double cross structure and Compound spiral structure). We calculate thetransmittance of the left and right circularly polarized light and then obtain rotatoryangle, circular dichroism, chirality parameters, effective permittivity, effectivemagnetic permeability and equivalent refractive index. These structures can Achievenegative refraction.