Thin film optical medium of a multiple amphiphilic bilayer composite
US5246748A · kind A · utility
14Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1991 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Dec 23, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention provides novel self-assembled multilayer organic thin films including an azo-benzene chromophore which initially appear substantially amorphous when viewed perpendicular to the film surface, but are subsequently treated with a laser in selected areas so that such portions exhibit photo-induced birefringence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.