Optical Metasurface-Based Holographic Stereogram

Yun Seok Choi, Shinho Lee, Joo Yun Jung, Kwang Yong Jeong, Hong Gyu Park, Min Kyo Seo

Research output: Contribution to journalArticle

Abstract

Holographic stereography providing binocular depth cues is one of the most promising technologies for 3D displays. However, conventional holographic stereograms based on micrometer-scale pixels suffer from multiple diffraction orders and narrow viewing angles. Optical metasurfaces with sub-wavelength-scale features have recently been leading amongst the state-of-the-art technologies in 3D holograms but employing only monocular depth cues. Here, a novel method is presented based on optical metasurfaces for obtaining a binocular holographic stereopsis. The demonstrated optical metasurface is an ensemble of several hologram pieces, which produce the different 2D projections of the target 3D structure depending on the observation direction, and displays the holographic stereogram of 25 × 25 × 25 µm3 over a wide viewing angle of more than ±30°. A Gerchberg–Saxton algorithm modified with a spatial Fourier filter calculates the phase and amplitude distribution of meta-atoms. The results will open avenues to advanced eyeglasses-free 3D displays that can provide rich and well-defined depth cues.

Original languageEnglish
Article number1901970
JournalAdvanced Optical Materials
DOIs
Publication statusAccepted/In press - 2020 Jan 1

Keywords

  • computer-generated holograms
  • holographic stereograms
  • meta-atoms
  • optical metasurfaces

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Choi, Y. S., Lee, S., Jung, J. Y., Jeong, K. Y., Park, H. G., & Seo, M. K. (Accepted/In press). Optical Metasurface-Based Holographic Stereogram. Advanced Optical Materials, [1901970]. https://doi.org/10.1002/adom.201901970