(Peer-Reviewed) Cascaded metasurfaces for adaptive aberration correction
Lei Zhang 张磊 ¹ ², Tie Jun Cui 崔铁军 ¹ ²
¹ Institute of Electromagnetic Space and State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
中国 南京 东南大学电磁空间科学与技术研究院 毫米波国家重点实验室
² School of Information Science and Engineering, Southeast University, Nanjing 210096, China
中国 南京 东南大学信息科学与工程学院
Opto-Electronic Advances
, 2025-05-27
Abstract
Aberration-corrected focus scanning is crucial for high-precision optics, but the conventional optical systems rely on bulky and complicated dynamic correctors. Recently, Shiyi Xiao's group proposed a method using two rotating cascaded transmissive metasurfaces for adaptive aberration correction in focus scanning.
The optimized phase profiles enable precise control of the focal position for scanning custom-curved surfaces. This concept was experimentally validated by two all-silicon meta-devices in the terahertz regime, paving the way for high-precision and compact optical devices in various applications.
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