Highly-efficient GRIN Lens Optimization Through Differential Ray Tracing

Highly-efficient GRIN Lens Optimization Through Differential Ray Tracing
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DOI：
10.1109/ieeeconf35879.2020.9330342
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发表时间：
2020-07
期刊：
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
影响因子：
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通讯作者：
M. Balasubramanian;S. Campbell;D. Werner
M. Balasubramanian;S. Campbell;D. Werner
中科院分区：
其他
文献类型：
--
作者：
M. Balasubramanian;S. Campbell;D. Werner

文献摘要

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提出了一种新的具有梯度折射率（GRIN）特性的光学透镜的微分光线追迹（DRT）公式。在透镜优化期间所需的度量函数梯度通过DRT获得，与有限差分（FD）方法相比，DRT需要非常少的函数评估。数值结果验证所提出的方法的准确性。
A new differential ray tracing (DRT) formulation for optical lenses with gradient-index (GRIN) properties is presented. The metric function gradient required during lens optimization is obtained by DRT, which requires very few function evaluations when compared to the finite difference (FD) approach. Numerical results validating the accuracy of the proposed method are presented.