Method for synthesising a material
US10808320B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 16, 2017 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Jul 18, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC30B29/22
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The method involves a substrate 21 near which reagents 25 are provided. Pump (26) and Raman (27) photons make it possible to create a stimulated Raman emission during the synthesis (29) of the material. The Raman emission can be Stokes or anti-Stokes. In one embodiment of the invention, the zone where the synthesis (29) occurs is in an optical cavity and Raman photons (27) emitted by the Raman emission are reoriented toward the zone where the synthesis (29) occurs. In another embodiment of the invention, the zone where the synthesis (29) occurs is not in an optical cavity, and a stream of Raman photons (27) is created in an outside optical cavity before being sent toward the zone where the synthesis (29) occurs. The synthesis (29) preferably involves a CVD method or solidification by the Czochralski method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.