公开(公告)号：US20230184996A1

公开(公告)日：2023-06-15

申请号：US17919368

申请日：2021-04-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Martin B. WOLK ,  Robert L. BROTT ,  Karl K. STENSVAD ,  Vadim N. SAVVATEEV ,  James M. NELSON ,  Lin ZHAO ,  Caitlin RACE ,  Adam D. HAAG

IPC: G02B1/00 ,  G02B5/30 ,  C23C14/20 ,  C23C14/10 ,  C23C14/34

CPC classification number: G02B1/002 ,  G02B5/305 ,  G02B5/3066 ,  C23C14/205 ,  C23C14/10 ,  C23C14/3464 ,  G02B2207/101

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 including a refractive index contrast material adjacent to the nanostructured surface of the patterned polymer layer forming a nanostructured bilayer with a nano structured interface. The nanostructured bilayer comprising a plurality of nanostructures disposed on the flexible polymeric film. The nanostructured bilayer 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. A light reflecting layer is in optical communication with the nano structured bilayer.