Device and method for inducing by thermal poling a spatially controlled refractive index gradient inside an amorphous inorganic material
US10919801B2 · kind B2 · utility
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Key dates
| Filing date | Jun 27, 2017 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Oct 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3558
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device for inducing by thermal poling a spatially controlled refractive index gradient inside at least one amorphous inorganic material to be treated, includes a structured electrode arranged on the surface or in proximity to the surface of the material to be treated; and at least one dielectric material. The structured electrode includes at least one conductive zone and at least one non-conductive zone and it is confined between the amorphous inorganic material to be treated and the dielectric material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.