US Patent Issued to Shanghai Jiao Tong University on Dec. 2 for "Reflection-asymmetric metal grating polarization beam splitter" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,468, issued on Dec. 2, was assigned to Shanghai Jiao Tong University (Shanghai).

"Reflection-asymmetric metal grating polarization beam splitter" was invented by Zhicheng Ye (Shanghai) and Jun Zheng (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "The reflection-asymmetric metal grating polarization beam splitter comprises a substrate, and a first grating composed of first mediums and first metals, and first light-absorbing materials are provided on the upper surfaces or side surfaces of the first metals. A plurality of second materials are provided at equal intervals longitudinally along the upper surfaces of the first metals to form a secon...