Plasmonic Hologram Based on Metallic Nanowire Gratings

In this letter, we present a colorful plasmonic hologram which is polarization sensitive—the diffraction efficiency of transverse magnetic light is more enhanced than that of the transverse electric light. The character is caused by longitudinal plasmonic waveguiding effects in the periodic metal-insulator-metal waveguides. These patterns in the hologram even lead to the merits of wide incident angle and working bands. This letter affords a new approach to fabricate highly efficient and polarization-dependent hologram, which is potentially applicable to stronger anticounterfeiting and compatible with liquid crystal for dynamic 3-D displays.