ALEXANDRIA, Va., June 4 -- United States Patent no. 12,322,920, issued on June 3, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"Coherent light source based on collective spontaneous emission" was invented by Deniz Yavuz (Madison, Wis.), David Gold (Madison, Wis.), Mark Saffman (Madison, Wis.) and Thad Walker (Middleton, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coherent light source provides spontaneous emission (Dicke superradiance/subradiance) using a dilute and optically thin cloud of disordered atoms. The coherent light source provides improved noise statistics over that of a laser and Lambda accordingly, may be used in sensitive interferometric applications such as l...