Abstract
Recently, for the high recording density technology that aims at recording density of 1Tbit/inch2, heat assisted hybrid recording has been suggested. Near-field optics is one of the important factors for the hybrid recording to shrink an optical spot to a diameter of 50 nm or below. In this study, we analyzed a double layered plasmon antenna for hybrid recording by Finite Difference Time Domain (FDTD). The double layered plasmon antenna was designed on the resonance wavelength which itself depends on the materials and the shape of the antenna. The results of the calculation showed high power intensity and focused optical spot at the nanosize level.
