In this article we introduce a magnetoplasmonics (MP) planar nanostructure with enhanced transverse magneto-optical (MO) activity. For this goal MO characteristics of magneto-structures comprising both metal layer and linear array of (metal) nanorods are analyzed. We explore three types of structures with nanorods and compare their features based on transvers magneto-optical Kerr effect (TMOKE) with the corresponding one for conventional three layers MO structure.
Comparison between the values of TMOKE signals in two structures (proposed and conventional)shows more than one order of magnitude improvement. Due to this feature the refractive index sensitivity of the offered structures, specially with one and three types of Au nanorod arrays,