Method for the reduction of iron in iron-doped lithium niobate crystals
US3932299A · kind A · utility
15Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1973 |
| Grant date | Jan 13, 1976 |
| Priority date | — |
| Expiry date | Dec 3, 1993 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3551
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Lithium niobate single crystals doped with iron can be treated to reduce trivalent iron to divalent iron without reduction of the lithium niobate host crystal, by surrounding the crystal with a high-melting salt of lithium, such as lithium carbonate, and heating in an oxygen-containing atmosphere until the desired amount of reduction is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.