ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,363, issued on June 23, was assigned to NETA (Talence, France).
"Multipoint photo-acoustic measuring device" was invented by Allaoua Abbas (Paris), Yohann Hereau (Bordeaux, France), Julien Michelon (Bordeaux, France) and Xavier Tridon (Bordeaux, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method comprises non-destructive contact-free physical characterization of a sample by repeated excitations of the surface of a sample with a sequence of pulses comprising at least one pump pulse by a first "pump" laser followed by a succession of L temporarily offset pulses by a second "probe" laser, and the analysis of the beam emitted by the surface ...