Abstract

Formation of bandgaps in a one-dimensional magnetophotonic crystal made of anisotropic uniaxial materials with gyrotropy was studied. In such a crystal two types of degenerate bandgaps can appear at the same frequencies: anisotropic bandgaps (at no magnetization and angularly offset optical axes of the layers’ materials) and gyrotropic bandgaps (at magnetization and collinear optical axes). A linkage between such degenerate bandgaps was studied. A bandgap of one type becomes wider if the formation mechanism for the bandgap of the other type is turned on. The width of such a combined bandgap was determined to be a function of only the widths of the respective anisotropic and gyrotropic degenerate bandgaps and to not depend explicitly on any other parameters.

© 2011 Optical Society of America

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