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
Wetzstein, Gordon
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Gopakumar, Manu;Kim, Jonghyun;Wetzstein, Gordon

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计算机生成的全息术遭受由像素化空间光调制器产生的高衍射级(HDO),其必须使用庞大的光学器件进行光学滤波。在这里,我们开发了一个算法框架,用于优化HDO,而无需光学滤波,以实现紧凑的全息显示。我们设计了一个波的传播模型ofHDO和使用它来优化相位图案,这使得HDO有助于形成图像,而不是创建文物。该方法显着优于以前的算法在未过滤的全息显示原型。(C)根据OSA开放获取出版协议的条款,2021年美国光学学会
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