ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,564, issued on Oct. 21, was assigned to Moxtek Inc. (Orem, Utah).
"Metasurface with an absorptive aperture border" was invented by R. Stewart Nielson (Pleasant Grove, Utah), Shaun Patrick Ogden (Saratoga Springs, Utah) and Bradley R. Willliams (Pocatello, Idaho).
According to the abstract* released by the U.S. Patent & Trademark Office: "A metasurface optical device can include an array of pillars 13 on a first-side 11f of a substrate 11 aligned with an aperture 15 of, or proximate to, a blocking-layer 12. The blocking-layer 12 can located on the first-side 11f of the substrate 11, on a second-side 11s of the substrate 11 opposite of the first-side 11f, or both. The blocking-laye...