Aluminum Plasmonic Multicolor Meta-Hologram

We report a phase-modulated multicolor meta-hologram (MCMH) that is polarization-dependent and capable of producing images in three primary colors. The MCMH structure is made of aluminum nanorods that are arranged in a two-dimensional array of pixels with surface plasmon resonances in red, green, and blue. The aluminum nanorod array is patterned on a 30 nm thick SiO2 spacer layer sputtered on top of a 130 nm thick aluminum mirror. With proper design of the structure, we obtain resonances of narrow bandwidths to allow for implementation of the multicolor scheme. Taking into account of the wavelength dependence of the diffraction angle, we can project images to specific locations with predetermined size and…

• AS
  Academia Sinica

  Award: AS-103-TP-A06
• MO
  Ministry of Science and Technology, Taiwan

  Awards: 103-2745-M-002-004-ASP, 103-2911-I-002-594
• AF
  Air Force Office of Scientific Research

  Awards: FA9550-14-1-0196, FA2386-14-1-4073