Multiperiodic magnetoplasmonic gratings fabricated by the pulse force nanolithography

Abstract

We propose a novel technique for the magnetoplasmonic nanostructures fabrication based on the pulse force nanolithography method. It allows one to create the high-quality magnetoplasmonic nanostructures that have lower total losses than the gratings made by the electron beam lithography. The method provides control of the SPP excitation efficiency by varying the grating parameters such as the scratching depth or the number of the scratches in a single period. The quality of the plasmonic gratings was estimated by means of the transverse magneto-optical Kerr effect that is extremely sensitive to the finesse of a plasmonic structure.