Nonlinear optical applications of nonconjugated conductive polymers
US8349216B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jun 4, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Sep 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3616
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Nonconjugated conductive polymers have a ratio of double bonds to total bonds of less than ½ are used to produce compositions with unexpected non-linear optical characteristics in this invention. Large third order optical effects including quadratic electro-optic effect and two-photon absorption have been measured in nonconjugated conductive polymers after doping the polymers. Among the nonconjugated polymers are styrene-butadiene-rubber copolymer (SBR), poly(β-pinene), poly(ethylene-pyrrolediyl) derivative, polynorbornene, cis-1,4 polyisoprene and trans-1,4 polyisoprene. The enhancement of the non-linear optical effect is due to the special charge-transfer complex structure and formation of nano-optical domains. Among the doping materials are electron acceptors such as iodine and antimony pentachloride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.