We propose a simple and efficient technique capable of generating Fourier phase only holograms with a reconstruction quality similar to the results obtained with the Gerchberg–Saxton (G-S) algorithm. Our proposal is to use the traditional G-S algorithm to optimize a random phase pattern for the resolution, pixel size, and target size of the general optical system without any specific amplitude data. This produces an optimized random phase (ORAP), which is used for fast generation of phase only holograms of arbitrary amplitude targets. This ORAP needs to be generated only once for a given optical system, avoiding the need for costly iterative algorithms for each new target. We show numerical and experimental results confirming the validity of the proposal.

中文翻译：

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优化的仅随机相位全息图

我们提出了一种简单有效的技术，该技术能够生成仅具有傅立叶相位的全息图，其重建质量与使用Gerchberg-Saxton（GS）算法获得的结果相似。我们的建议是使用传统的GS算法来优化随机光学系统的分辨率，像素大小和目标大小的随机相位模式，而无需任何特定的振幅数据。这将产生优化的随机相位（ORAP），用于快速生成任意幅度目标的仅相位全息图。对于一个给定的光学系统，只需要生成一次该ORAP，从而避免了为每个新目标使用昂贵的迭代算法的麻烦。我们显示了数值和实验结果，证实了该建议的有效性。