Photonic crystal device
US8736952B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2009 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jul 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07D7/003
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A photonic crystal device comprising: a photonic crystal material having an initial ordered structure and a viewing surface, the initial ordered structure giving rise to a first optical effect detectable from the viewing surface; and a removal layer removably attached with the viewing surface or an opposing surface of the photonic crystal material opposite to the viewing surface; wherein mechanical removal of at least a portion of the removal layer results in a structural change in at least a portion of the initial ordered structure of at least a portion of the photonic crystal material respective to the portion of the removed removal layer, thereby resulting in a changed portion different from the initial ordered structure, the changed portion giving rise to a second optical effect detectable from the viewing surface and detectably different from the first optical effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.