POLY 521 |
| In order to develop a new nonlinear optical material with a high second-order nonlinear optical coefficient (d33) and low optical loss at a wavelength of 1.55 mm for all-optical wavelength converters, we designed and synthesized a monomer with 2-(methyl-{4-[(6-nitro-benzenothiazol-2-ylimino)-methyl]-phenyl}-amino)-ethanol and some fluorine group and successfully obtained an NLO copolymer from 1-pentafluorophenyl-pyrrole-2,5-dione, 2,2,2-trifluoroethyl acrylate, and the monomer. The NLO polymer film is prepared well, and its second-order nonlinear optical coefficient is as high as around 22 pm/V at a wavelength of 1.55 mm. Tg of the copolymers varies with the copolymer composition. The copolymer films are also expected to decrease the optical loss at a wavelength of 1.55 mm since fluorine group is partly substituted for hydrogen group in their polymer backbone structures. We are attempting to investigate further the optimal chromophore concentration and poling conditions of the copolymer for a high d33 and low optical loss at a wavelength of 1.55 mm. Also, the details of the optical properties of the NLO polymer materials will be discussed with consideration of their real application to polymer wavelength converters. |
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Organic Thin Films for Photonic Applications
6:00 PM-8:00 PM, Tuesday, 12 September 2006 Moscone Center -- Hall D, Poster
Division of Polymer Chemistry |