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基于2F结构的元表面的小型化芯片内光学区分器

Hanting Ding, Chao Chen, Yu Yu

|November 15, 2024

概括

研究人员开发了一种使用元表面的新型,超微型化芯片上2F光学计算系统. 这种紧的模拟光学计算方法简化了结构,而不会牺牲光速计算的准确性.

科学领域:

光子学和光学工程的工程.
地表表面技术的技术.
模拟光学计算模拟光学计算

背景情况:

模拟光学计算在光速下提供低功耗和高并行性.
传统的4F光学系统是庞大而复杂的.
需要小型化,高效的光学计算架构.

研究的目的:

提出和演示一种新的,超小型化的芯片上2F光学模拟计算结构.
为了简化光学计算系统,同时保持准确性.
为了利用超表面来实现先进的光学功能.

主要方法:

在芯片上设计了一个2F光学系统,利用元表面.
实现了相位补偿和复杂的振幅调制.
制造了一种基于在绝缘体上的光学分辨器.

主要成果:

实现了一个超小型化的光学模拟计算系统.
与传统的4F系统相比,展示了一个简化的结构.
获得了84.01% (模拟) 和79.81% (实验) 的差分精度.

结论:

新的芯片上2F结构使得超微型模拟光学计算成为可能.
超表面为紧而精确的光学系统提供了设计灵活性.
这项工作为下一代集成光子计算设备铺平了道路.

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