US Patent Issued to Institute of Physics, Chinese Academy of Sciences on Jan. 20 for "Topological photonic crystal cavity and its application in lasers" (Chinese Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,531,394, issued on Jan. 20, was assigned to Institute of Physics, Chinese Academy of Sciences (Beijing).

"Topological photonic crystal cavity and its application in lasers" was invented by Ling Lu (Beijing), Lechen Yang (Beijing) and Xiaomei Gao (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A two-dimensional topological photonic crystal cavity, a design method thereof and an application in a laser. The two-dimensional topological photonic crystal cavity comprises multiple photonic crystal supercells, the multiple photonic crystal supercells having vortex-shaped structural variation around a center of the two-dimensional topological photonic cr...