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27 March 2021 High-quality holographic displays using double SLMs and camera-in-the-loop optimization
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Holographic displays have recently shown remarkable progress in the research field. However, images reconstructed from existing display systems using phase-only spatial light modulators (SLMs) are with noticeable speckles and low contrast due to the non-trivial diffraction efficiency loss. In this work, we investigate a novel holographic display architecture that uses two phase-only SLMs to enable high-quality, contrast-enhanced dis- play experiences. Our system builds on emerging camera-in-the-loop optimization techniques that capture both diffracted and undiffracted light on the image plane with a camera and use this to update the hologram patterns on the SLMs in an iterative fashion. Our experimental results demonstrate that the proposed display architecture can deliver higher-contrast and holographic images with little speckle without the need for extra optical filtering.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Suyeon Choi, Yifan Peng, Jonghyun Kim, and Gordon Wetzstein "High-quality holographic displays using double SLMs and camera-in-the-loop optimization", Proc. SPIE 11765, Optical Architectures for Displays and Sensing in Augmented, Virtual, and Mixed Reality (AR, VR, MR) II, 117650R (27 March 2021);

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