Physics – Optics
Scientific paper
2008-05-08
Physics
Optics
4 pages, 5 figures
Scientific paper
10.1103/PhysRevB.78.155101
We identify different types of the photonic band gaps (PBGs) of two dimensional magnetic photonic crystals (MPCs) consisting of arrays of magnetic cylinders and study the different tunability (by an external static magnetic field) of these PBGs. One type of the band gaps comes from infinitely degenerate flat bands and is closely related to those in the study of plasmonics. In addition, such PBGs are magnetically tunable and robust against position disorder. We calcualte the transmission of the PBG's and found excellent agreement with the results of the photonic band structure calculation. Positional disorder of the lattice structure affects the different types of PBGs differently.
Chui Siu Tat
Du Junjie
Lin Zhifang
Liu Shiyang
Wu Ruixin
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