ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,505,266, issued on Dec. 23, was assigned to THE INSTITUTE OF OPTICS AND ELECTRONICS, THE CHINESE ACADEMY OF SCIENCES (Chengdu, China).

"High-order rotational symmetry unit-based nonlinear geometric phase metasurface" was invented by Xiangang Luo (Sichuan, China), Mingbo Pu (Sichuan, China), Yan Chen (Sichuan, China), Fei Zhang (Sichuan, China), Xiaoliang Ma (Sichuan, China), Xiong Li (Sichuan, China) and Zeyu Zhao (Sichuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a high-order rotational symmetry unit-based nonlinear geometric phase metasurface, which sequentially comprises from the bottom to the top: a substr...