Polar Magneto-Optical Kerr Rotation Enhancement in Au/Co/Au Magneto-Plasmonics multilayer by Use of Kretschmann Configuration

Plasmonics as an attractive field of science was promoted in the last decades and one of the most attractivebranches of plasmonics is correlating plasmonics with magneto-optics that causes Magneto-Plasmonics. In this study weattempt to investigate the magneto-plasmonics response of the Au (20nm)/Co(5nm)/Au(17nm)when apply external polarmagnetic field in Kretschmann configuration, compared with 11-11-11 nm of thicknesses for this fabrication. Our resultsdemonstrate that because of stronger magnetic field enhancement in Au(20nm)/Co(5nm)/Au(17nm), the Kerr rotation isgreater than with respect to Au(11nm)/Co(11nm)/Au(11nm) specimen.Accordingly making a system with strongermagnetic field enhancement is corresponding to increasing Kerr rotation that for example can use in modulators.

کلیدواژه ها:

Polar Magneto Optical Kerr Effect ، Kretschmann Configuration ، Magneto-Plasmonics