Comparative Analysis of Magnetic Polaritons in Periodic and Quasi-periodic Structures

The dispersion relation for the bulk magnetic polaritons is investigated in Fibonacci quasi-periodic structures. The quasi-periodic system, including the alternating layers of magnetic and non-magnetic mediums, is immersed in an external magnetic field. We found that the quasi-periodic structures (based on the Fibonacci series) improve the wave frequency of the magnetic polaritons compared to a similar periodic structure. It is shown that the allowable bands show an increase in a quasi-periodic system. We can employ such quasi-periodic structures in the new electronic applications based on multi-band filtering systems.