15 October 2004 Design, synthesis, and characterization of a novel class of tunable chromophores for second- and third-order NLO applications
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Abstract
We describe a general approach for the synthesis of 6,6'-(disubstituted)-3,3'-bipyridine based chromophores. This combinatorial type strategy is based on (i) the synthesis of a library of conjugated building blocks end-capped with electron donor or acceptor groups, and (ii) their homo- or cross-coupling. The compounds are either dipolar (push-pull molecules) or apolar (symmetric D-A-A-D) molecules. Depending on the building blocks, we are able to tune both the structural and NLO properties of the chromophores. For example, the D-A-A-D structure possesses ultrafast nonresonant nonlinearity around 1550 nm with excellent figures of merit, as well as TPA in the visible and NIR ranges.
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Andre-Jean Attias, Andre-Jean Attias, Nicolas Leclerc, Nicolas Leclerc, Qiying Chen, Qiying Chen, Edward H. Sargent, Edward H. Sargent, Guillaume Schull, Guillaume Schull, Fabrice Charra, Fabrice Charra, } "Design, synthesis, and characterization of a novel class of tunable chromophores for second- and third-order NLO applications", Proc. SPIE 5516, Nonlinear Optical Transmission and Multiphoton Processes in Organics II, (15 October 2004); doi: 10.1117/12.563825; https://doi.org/10.1117/12.563825
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