The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 2025
Filed:
Dec. 01, 2020
3m Innovative Properties Company, St. Paul, MN (US);
President and Fellows of Harvard College, a Charitable Corporation of Massachusetts, Cambridge, MA (US);
Martin B. Wolk, Woodbury, MN (US);
Robert L. Brott, Woodbury, MN (US);
Karl K. Stensvad, Eagan, MN (US);
James M. Nelson, Lino Lakes, MN (US);
Federico Capasso, Cambridge, MA (US);
Xinghui Yin, Cambridge, MA (US);
Joon-Suh Park, Cambridge, MA (US);
3M Innovative Properties Company, St. Paul, MN (US);
President and Fellows of Harvard College, Cambridge, MA (US);
Abstract
An optical metasurface film includes a flexible polymeric film having a first major surface, a patterned polymer layer having a first surface proximate to the first major surface of the flexible polymeric film and having a second nanostructured surface opposite the first surface, and a refractive index contrast layer adjacent to the nanostructured surface of the patterned polymer layer forming a nanostructured bilayer with a nanostructured interface. The nanostructured bilayer acts locally on amplitude, phase, or polarization of light, or a combination thereof and imparts a light phase shift that varies as a function of position of the nano structured bilayer on the flexible polymeric film. The light phase shift of the nanostructured bilayer defines a predetermined operative phase profile of the optical metasurface film.