US Patent Issued to International Business Machines on Dec. 2 for "Optical logic using seeded exciton-polariton condensates" (Swiss Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,502, issued on Dec. 2, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Optical logic using seeded exciton-polariton condensates" was invented by Darius Urbonas (Adliswil, Switzerland), Thilo Hermann Curt Stoeferle (Rueschlikon, Switzerland) and Rainer F. Mahrt (Maennedorf, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical gate device may have one or more optical cavities. The optical cavity may have an embedded optically-active material providing strong light-matter coupling. A pump input allows application to of a pulsed optical pump beam the optically-active material. The pump beam is absorbed by the optic...