面向衍射光学设计自动化的电磁仿真方法以及系统

By employing an electromagnetic simulation method for automated design of diffractive optics, and utilizing the backpropagation algorithm to construct complex structures, the diffraction field can be quickly predicted, thus solving the memory and time bottlenecks in the electromagnetic simulation of large and complex structures and achieving efficient electromagnetic optimization.

CN116306233BActive Publication Date: 2026-07-17SHANGHAI TECH UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI TECH UNIV
Filing Date
2023-01-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing electromagnetic simulation technology is limited by computer memory and computation time in the simulation of large and complex structures, and electromagnetic optimization is costly, making it difficult to efficiently handle electromagnetic optimization problems of large and complex structures.

Method used

An automated approach to diffractive optics design is adopted, which uses a backpropagation algorithm to construct complex structures. By combining standard diffraction units and redundant units, the diffraction field is quickly predicted, interlayer reflection is reduced, and the diffraction field is optimized through the backpropagation algorithm.

Benefits of technology

It achieves fast and accurate electromagnetic simulation, reduces the computer memory requirements, greatly accelerates the simulation time, and improves simulation efficiency through iterative optimization.

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Abstract

本发明提供一种面向衍射光学设计自动化的电磁仿真方法以及系统,通过面向衍射光学设计自动化的复杂结构体的标准衍射单元的标准衍射模型,复杂结构体的衍射场就可以快速且准确地预测出来,不需要借助传统的电磁仿真工具,从而克服了传统电磁仿真工具在内存及速度上的瓶颈。并且极大地加速了复杂结构体的电磁仿真时间,且对计算机内存的要求不高;还由于通过采用先进的反向传播优化算法进行电磁优化,进而可以实现快速迭代地优化复杂结构体的衍射场。
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