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Unfiltered holography: optimizing high diffraction orders without optical filtering for compact holographic displays
Optics Letters ( IF 3.6 ) Pub Date : 2021-11-19 , DOI: 10.1364/ol.442851
Manu Gopakumar 1 , Jonghyun Kim 1 , Suyeon Choi 1 , Yifan Peng 1 , Gordon Wetzstein 1
Affiliation  

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 of HDOs 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.

中文翻译:

未过滤全息:优化高衍射级,无需光学过滤,适用于紧凑型全息显示器

计算机生成的全息术受到像素化空间光调制器产生的高衍射级 (HDO) 的影响,必须使用庞大的光学器件进行光学过滤。在这里,我们开发了一种算法框架,用于在没有光学过滤的情况下优化 HDO,以实现紧凑的全息显示。我们设计了 HDO 的波传播模型并使用它来优化相位模式,这使 HDO 有助于形成图像而不是创建伪影。所提出的方法在未经过滤的全息显示原型中明显优于以前的算法。
更新日期:2021-12-02
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