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.

公开(公告)号：US20190162592A1

公开(公告)日：2019-05-30

申请号：US16091976

申请日：2017-04-07

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Mohammadreza KHORASANINEJAD ,  Federico CAPASSO ,  Wei Ting CHEN ,  Jaewon OH

IPC: G01J3/02 ,  G02B3/08 ,  G01J3/18

Abstract: A meta-lens having a phase profile includes a substrate and a plurality of nanostructures disposed on the substrate. The nanostructures together define the phase profile of the meta-lens. The phase profile achieves an off-axis focus. Each nanostructure is designed according to at least one design parameter of the nanostructure that imparts a phase shift of light passing through the nanostructure.

公开(公告)号：US20210132272A1

公开(公告)日：2021-05-06

申请号：US16471549

申请日：2017-12-19

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

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

IPC: G02B5/18 ,  G02B3/00 ,  G01J3/28 ,  G01J3/02

Abstract: An optical device includes: (1) a substrate; and (2) multiple meta-lenses disposed on the substrate, each meta-lens of the meta-lenses including multiple nanofins disposed on a respective region of the substrate, the nanofins together specifying a phase profile of the meta-lens.

公开(公告)号：US20190154877A1

公开(公告)日：2019-05-23

申请号：US16091104

申请日：2017-04-05

Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE

Inventor： Federico CAPASSO ,  Wei Ting CHEN ,  Robert Charles DEVLIN ,  Mohammadreza KHORASANINEJAD ,  Jaewon OH ,  Alexander ZHU ,  Charles ROQUES-CARMES ,  Ishan MISHRA

IPC: G02B1/00 ,  G02B3/08

Abstract: A meta-lens having a phase profile includes a substrate and a plurality of nanostructures disposed on the substrate. Each individual nanostructure of the nanostructures imparts a light phase shift that varies depending on a location of the individual nanostructure on the substrate. The light phase shifts of the nanostructures define the phase profile of the meta-lens. The varying light phase shifts can be realized by, e.g., changing orientations of nanofins or changing diameters of nanopillars.