14:30 〜 14:45
▲ [19p-225B-6] Toward Multilayered Chiro-Ferrite Mediums
キーワード：Chiro-Ferrite Waveguides, Complex Mediums, Multilayered Structures
Layered mediums are attractive in applications such as dielectric mirrors, optical filters and phase modulators owing to the band-gaps these exhibit. Variation in refractive index, and the use of anisotropic mediums play significant roles to determine the position of band-gaps in the optical regime. Chiro-ferrite mediums may also be used in such periodic configurations. These are composites, i.e. the mixture of chiral and ferrite mediums wherein the chirality can be controlled through the application of static magnetic field. This work describes in brief on chiro-ferrite medium-based 1D periodic structure, which would behave as band-stop filters under certain situations. The gyrotropic property of medium plays determining role - the alterations in which would fulfill the on demand kind of application - the feature that cannot be achieved by the usage of simple dielectric mediums in the layered configurations. It has been found that the periodic bi-layer configuration of chiro-ferrite mediums would behave as a perfect band-stop filter without the creation of defects in the geometry.