Systems and methods for improving the performance of a photorefractive device
US8203780B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 2, 2008 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Jan 2, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2260/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photorefractive device (100) and method of manufacture are disclosed. The device (100) comprises a layered structure in which one or more polymer layers (110) are interposed between a photorefractive material (106) and at least one transparent electrode layer (104). The layered structure is further interposed between a plurality of substrates (102). When a bias is applied to the device (100), the device (100) exhibits an increase in signal efficiency of approximately three to four times that of similar, but non-buffered, devices. Concurrently, the device (100) of the present disclosure utilizes approximately half the biased voltage, advantageously resulting in a longer device lifetime.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.