| Autor: |
Jae-Wook Kang, Tae-Dong Kim, Jingdong Luo, Haller, Marnie, Jen, Alex K.-Y. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 8/15/2005, Vol. 87 Issue 7, p071109, 3p, 1 Diagram, 3 Graphs |
| Abstrakt: |
A synthetic/processing method has been developed for achieving highly efficient nonlinear optical polymers. A maleimide-containing chromophore with large molecular nonlinearity was covalently attached onto a anthrathene-containing polymer to generate in situ a side-chain polymer via the Diels-Alder reaction. The poling and covalent side-chain attachment processes can be performed simultaneously in a solid state, resulting in high electro-optic (E-O) coefficients (r33 values up to 50 pm/V at 1310 nm) and temporal stability (85% retention of the original dipole alignment after isothermal heating at 85 °C for more than 500 h). A very high chromophore loading level (39 wt %) can be achieved by adding more chromophore into this side-chain polymer without causing any obvious phase separation. Poling of this chromophore-doped side-chain polymer (total dye content: 34 wt %) showed a significantly increased E-O coefficient, from 50 to 110 pm/V. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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