ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,279, issued on Jan. 27, was assigned to ZHEJIANG UNIVERSITY (Zhejiang, China).

"Spherical designer electromagnetic surface plasmon open resonator" was invented by Fei Gao (Zhejiang, China), Yuanzhen Li (Zhejiang, China), Baile Zhang (Singapore) and Hongsheng Chen (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spherical designer electromagnetic surface plasmon open resonator is provided. The open resonator includes a resonator inner core and a resonator outer shell. The resonator inner core is located in an inner center of the resonator outer shell, and the resonator inner core and the resonator outer shell are coaxial. The disclos...