ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,168, issued on June 24, was assigned to Q.ANT GMBH (Stuttgart, Germany).
"Method for joining an optical crystal to a substrate" was invented by Felix Zimmermann (Ditzingen, Germany), Michael Foertsch (Ansbach, Germany), Stefan Hengesbach (Stuttgart, Germany) and Eugen Ermantraut (Leonberg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for joining an optical crystal to a substrate includes radiating a pulsed laser beam through the optical crystal or through the substrate onto a surface of an intermediate layer between the optical crystal and the substrate, and forming a fusion zone in the intermediate layer between the optical cryst...