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DTSTAMP:20240214T070244Z
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:Technical Communications, Technical Papers\n\nSeung-Woo Nam, Y
 oungjin Kim, Dongyeon Kim, and Yoonchan Jeong (Seoul National University)\
 n\nThe evolution of computer-generated holography (CGH) algorithms has pro
 mpted significant improvements in the performances of holographic displays
 . Nonetheless, they start to encounter a limited degree of freedom in CGH 
 optimization and physical constraints stemming from the coherent nature of
  holograms. To surpass the physical limitations, we consider polarization 
 as a new degree of freedom by utilizing a novel optical platform called me
 tasurface. Polarization-multiplexing metasurfaces enable incoherent-like b
 ehavior in holographic displays due to the mutual incoherence of orthogona
 l polarization states. We leverage this unique characteristic of a metasur
 face by integrating it into a holographic display and exploiting polarizat
 ion diversity to bring an additional degree of freedom for CGH algorithms.
  To minimize the speckle noise while maximizing the image quality, we devi
 se a fully differentiable optimization pipeline by taking into account the
  metasurface proxy model, thereby jointly optimizing spatial light modulat
 or phase patterns and geometric parameters of metasurface nanostructures. 
 We evaluate the metasurface-enabled depolarized holographic display throug
 h simulations and experiments, demonstrating its ability to reduce speckle
  noise and enhance image quality.\n\nRegistration Category: Full Access\n\
 nSession Chair: Yifan Peng (The University of Hong Kong (HKU))
URL:https://asia.siggraph.org/2023/full-program?id=papers_803&sess=sess143
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