Cascaded metasurfaces for adaptive aberration correction
用于自适应像差校正的级联超曲面
適応性偏差修正のためのキャスケードメタ表面
적응형 aberration 수정을 위한 cascaded metasurfaces
Metasuperficies en cascada para corrección de aberraciones adaptativas
Métasurfaces en cascade pour la correction d'aberration adaptive
Каскадные метаповерхности для адаптивной коррекции аберрации
Lei Zhang ¹ ², Tie Jun Cui 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
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.
