Achromatic multi-zone metalens
AssigneePresident and Fellows of Harvard College
InventorsZhaoyi LI, Yao-Wei HUANG, Federico CAPASSO
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Abstract
An optical device includes a first zone including a first plurality of nanoscale elements. The first plurality of nanoscale elements has a first optical dispersion profile and a first orientation. The optical device has a second zone including a second plurality of nanoscale elements. The second plurality of nanoscale elements has a second optical dispersion profile and a second orientation. The first orientation and the second orientation are configured according to constructive interference for a plurality of wavelengths and a focal length.
Claims20
An optical device, comprising:
- a first zone comprising a first plurality of nanoscale elements, wherein the first plurality of nanoscale elements has a first optical dispersion profile and a first orientation;
- and
- a second zone comprising a second plurality of nanoscale elements, wherein the second plurality of nanoscale elements has a second optical dispersion profile and a second orientation;
- wherein the first orientation and the second orientation are configured according to constructive interference for a plurality of wavelengths and a focal length.
A method of manufacturing an optical device, comprising:
- disposing a first plurality of nanoscale elements in a first zone, wherein the first plurality of nanoscale elements has a first optical dispersion profile and a first orientation;
- disposing a second plurality of nanoscale elements in a second zone, wherein the second plurality of nanoscale elements has a second optical dispersion profile and a second orientation;
- and
- determining the first orientation and the second orientation based on constructive interference for a plurality of wavelengths and a focal length.
An augmented reality device, comprising:
- a first zone comprising a first plurality of nanoscale elements, wherein the first plurality of nanoscale elements has a first optical dispersion profile and a first orientation;
- a second zone comprising a second plurality of nanoscale elements, wherein the second plurality of nanoscale elements has a second optical dispersion profile and a second orientation;
- and
- a waveguide for transmitting augmented reality information to the first zone and the second zone;
- wherein the first orientation and the second orientation are determined based on constructive interference for a plurality of wavelengths and a focal length.
Dependencies are inferred from the claim text.