Super-dispersive off-axis meta-lenses for high resolution compact spectroscopy
US10634557B2 · kind B2 · utility
5Cited by
1References
8Claims
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Key dates
| Filing date | Apr 7, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 7, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2207/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.