Meta-lenses for sub-wavelength resolution imaging
US11092717B2 · kind B2 · utility
13Cited by
2References
23Claims
0Family size
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Key dates
| Filing date | Apr 5, 2017 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Mar 24, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/101
- WIPO fieldOptics
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.