公开(公告)号：US20190235139A1

公开(公告)日：2019-08-01

申请号：US16332348

申请日：2017-10-13

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Wei-Ting CHEN ,  Mohammadreza KHORASANINEJAD ,  Alexander Yutong ZHU ,  Jaewon OH ,  Robert Charles DEVLIN ,  Muhammad Aun Abbas ZAIDI ,  Federico CAPASSO

IPC: G02B5/00 ,  G02B1/00

CPC classification number: G02B5/001 ,  G02B1/002 ,  G02B2207/101

Abstract: An optical device comprises a substrate and a metasurface. The metasurface comprises a plurality of nanoscale elements disposed on the transparent substrate at different orientations. The orientations of the nanoscale elements define a phase profile such that the nanoscale elements convert an incident light into an output light propagating substantially without diffraction.