Thermally modulated Nanophotonic Phased Arrays (NPAs) can be used as phase-only holographic displays. Compared to the holographic displays based on Liquid Crystal on Silicon Spatial Light Modulators (LCoS SLMs), NPAs have the advantage of integrated light source and high refresh rate. However, the formation of the desired wavefront requires accurate modulation of the phase which is distorted by the thermal proximity effect. This problem has been largely overlooked and existing approaches to similar problems are either slow or do not provide a good result in the setting of NPAs. We propose two new algorithms based on the iterative phase retrieval algorithm and the proximal algorithm to address this challenge. We have carried out computational simulations to compare and contrast various algorithms in terms of image quality and computational efficiency. This work is going to benefit the research on NPAs and enable the use of large-scale NPAs as holographic displays.

中文翻译：

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校正纳米光子相控阵中的邻近效应。

热调制纳米光子相控阵（NPA）可用作纯相位全息显示器。与基于硅空间光调制器（LCoS SLM）液晶的全息显示器相比，NPA具有集成光源和高刷新率的优势。但是，所需波阵面的形成需要相位的精确调制，该相位会因热邻近效应而失真。这个问题在很大程度上被忽略了，解决类似问题的现有方法要么很慢，要么在确定NPA方面没有提供好的结果。我们提出了两种基于迭代相位检索算法和近端算法的新算法来解决这一挑战。我们已经进行了计算仿真，以比较和对比各种算法的图像质量和计算效率。这项工作将有益于NPA的研究，并使大型NPA可以用作全息显示器。