Unfiltered holography: optimizing high diffraction orders without optical filtering for compact holographic displays
Unfiltered holography: optimizing high diffraction orders without optical filtering for compact holographic displays
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DOI:
10.1364/ol.442851
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发表时间:
2021-12-01
期刊:
影响因子:
3.6
通讯作者:
Wetzstein, Gordon
中科院分区:
文献类型:
--
作者:
Gopakumar, Manu;Kim, Jonghyun;Wetzstein, Gordon
Computer-generated holography suffers from high diffraction orders (HDOs) created from pixelated spatial light modulators, which must be optically filtered using bulky optics. Here, we develop an algorithmic framework for optimizing HDOs without optical filtering to enable compact holographic displays. We devise a wave propagation model ofHDOs and use it to optimize phase patterns, which allows HDOs to contribute to forming the image instead of creating artifacts. The proposed method significantly outperforms previous algorithms in an unfiltered holographic display prototype. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement