From fundamentals to applications: The development of magnetoplasmonics for next-generation technologies

Magnetoplasmonics is an emerging interdisciplinary field that studies the interaction between magnetism and plasmonics, and has great promise for the development of novel optical, magnetic, and spintronic devices. The goal of this review is to provide a comprehensive overview of the current state-of-the-art in magnetoplasmonics, including the fundamentals, materials, and applications. The review first presents an introduction to the basic concepts of magnetoplasmonics, magneto-optical and plasmonic materials, and the various ways in which they can be combined to create novel hybrid systems. The review then examines the influence of surface plasmon resonances on the magneto-optical properties of a system as well as the achievement of balance of magneto-optical and surface plasmon properties to maximize the overall magnetoplasmonic properties. Selected major applications in biomedicine, biomedical technologies, optoelectronics and telecommunications are then discussed. Finally, it concludes with key challenges in the use of magnetoplasmonics in these applications, the need for new materials, new fabrication approaches, and further understanding to control the complex interactions between magnetism and plasmonics.