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DTSTAMP:20260114T163642Z
LOCATION:Meeting Room C4.8\, Level 4 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231213T130000
DTEND;TZID=Australia/Melbourne:20231213T131500
UID:siggraphasia_SIGGRAPH Asia 2023_sess143_papers_803@linklings.com
SUMMARY:Depolarized Holography with Polarization-multiplexing Metasurface
DESCRIPTION:Seung-Woo Nam, Youngjin Kim, Dongyeon Kim, and Yoonchan Jeong 
 (Seoul National University)\n\nThe evolution of computer-generated hologra
 phy (CGH) algorithms has prompted significant improvements in the performa
 nces of holographic displays. Nonetheless, they start to encounter a limit
 ed degree of freedom in CGH optimization and physical constraints stemming
  from the coherent nature of holograms. To surpass the physical limitation
 s, we consider polarization as a new degree of freedom by utilizing a nove
 l optical platform called metasurface. Polarization-multiplexing metasurfa
 ces enable incoherent-like behavior in holographic displays due to the mut
 ual incoherence of orthogonal polarization states. We leverage this unique
  characteristic of a metasurface by integrating it into a holographic disp
 lay and exploiting polarization diversity to bring an additional degree of
  freedom for CGH algorithms. To minimize the speckle noise while maximizin
 g the image quality, we devise a fully differentiable optimization pipelin
 e by taking into account the metasurface proxy model, thereby jointly opti
 mizing spatial light modulator phase patterns and geometric parameters of 
 metasurface nanostructures. We evaluate the metasurface-enabled depolarize
 d holographic display through simulations and experiments, demonstrating i
 ts ability to reduce speckle noise and enhance image quality.\n\nRegistrat
 ion Category: Full Access\n\nSession Chair: Yifan Peng (University of Hong
  Kong)\n\n
URL:https://asia.siggraph.org/2023/full-program?id=papers_803&sess=sess143
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