One-way surface magnetoplasmon cavity and its application for nonreciprocal devices

Abstract

We theoretically analyze surface magnetoplasmon modes in a compact circular cavity made of magneto-optical material under a static magnetic field. Such a cavity provides two different physical mechanisms for the surface wave to circulate in a unidirectional manner around the cavity, which offers more freedom to realize one-way surface wave. We also show the interaction between this one-way cavity and waveguides, through an example of a circulator, which lays the fundamental groundwork for potential nonreciprocal devices.

5 pages, 5 figures. Add some text about the cutoff frequency at the end of Page 2. Add some text about loss under Figure 5