ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,609, issued on Sept. 23, was assigned to Huazhong University of Science and Technology (Wuhan, China) and The Regents of the University of Michigan (Ann Arbor, Mich.).

"Planar-waveguide-based multi-channel crosstalk-free metasurface holographic device" was invented by Zeyang Liu (Wuhan, China), Cheng Zhang (Wuhan, China), Lingjie Jay Guo (Ann Arbor, Mich.) and Hao Gao (Wuhan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a type planar-waveguide-based multi-channel crosstalk-free metasurface holographic devices, including a glass planar waveguide and a metasurface above the glass planar waveguide; light propagates inside the plan...