Wide viewing-angle holographic display based on enhanced-NA Fresnel hologram.

@article{Chae2021WideVH,
  title={Wide viewing-angle holographic display based on enhanced-NA Fresnel hologram.},
  author={Byung Gyu Chae},
  journal={Optics express},
  year={2021},
  volume={29 23},
  pages={
          38221-38236
        }
}
  • B. Chae
  • Published 27 April 2020
  • Physics
  • Optics express
The viewing-angle enlargement of a holographic image is a crucial factor for realizing the holographic display. The numerical aperture (NA) of digital hologram other than a pixel specification has been known to determine the angular field extent of image. Here, we provide a valid foundation for the dependence of viewing angle on the hologram numerical aperture by investigating mathematically the internal structure of the sampled point spread function showing a self-similarity of its modulating… 

Expansion of Image Space in Enhanced-NA Fresnel Holographic Display

The enhanced-NA Fresnel hologram reconstructs a holographic image at a viewing angle larger than the diffraction angle of a hologram pixel. The image space is limited by the bandwidth of a digital

Field expansion of holographic image reconstructed from enhanced-NA Fresnel hologram

A Fresnel hologram with a high numerical aperture reconstructs a holographic image at a viewing angle larger than the diffraction angle of a hologram pixel. The image space is limited by a bandwidth

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