Optical device
US5033810A · kind A · utility
9Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jun 19, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/377
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device has multilayer films formed by periodically laminating a number of layers each comprising at least two kinds of optical crystal thin films (f.sub.n, g.sub.n) having different refractive indices onto a substrate. The multilayer films include a semiconductor material having a large non-linear optical coefficient as a composing material and have artificial optical anisotropy. Since the multilayer films of the optical device have a large non-linear coefficient and optical anisotropy, a non-linear phenomenon such as second-harmonic generation or the like can be efficiently caused.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.