Method of fixing polarization-reversed region formed in ferroelectric single crystal
US8223427B2 · kind B2 · utility
1Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2007 |
| Grant date | Jul 17, 2012 |
| Priority date | — |
| Expiry date | Nov 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of fixing a polarization-reversed region formed in a ferroelectric single crystal, including preparing a ferroelectric single crystal having a polarization-reversed region; and irradiating an ion beam or a neutral beam on the ferroelectric single crystal. The ferroelectric single crystal is a substantially stoichiometric lithium tantalate single crystal or a substantially stoichiometric lithium niobate single crystal, and the polarization-reversed region is fixed and any back switch and expansion of the polarization-reversed region are suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.