Contrast-amplifying carriers using a two-dimensional material
US11635367B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Mar 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/11
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A contrast-amplifying carrier for observing a sample, includes a transparent substrate bearing at least one absorbent coating suitable for behaving as an antireflection coating when it is illuminated at normal incidence at an illumination wavelength λ through the substrate and when the face of the coating opposite the substrate is in contact with a medium referred to as a transparent ambient medium, the refractive index n3 of which is lower than that of the refractive index n0 of the substrate. The absorbent coating comprises: an absorbent sublayer referred to as the contrast sublayer, deposited on the surface of the transparent substrate; and an absorbent layer referred to as the sensitive layer, distinct from the contrast sublayer and comprising between 1 and 5 sheets of a graphene-type material. Methods for producing and for using such a contrast-amplifying carrier are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.