Layer by layer self-assembly of large response molecular electro-optic materials by a desilylation strategy
The preparation of robust, thin film materials with large second-order optical nonlinearities through the covalent self-assembly of chromophoric compositions and innovative use of silyl chemistry.
1. A non-linear optical material comprising a plurality of molecular bilayers, each said bilayer comprising a first chromophore molecular layer coupled to a capping molecular layer with a siloxane bond sequence, each molecular component of said chromophore molecular layer comprising a quaternary pyridinium moiety and opposed terminal silyl moieties, each said layer of said material coupled one to another with a siloxane bond sequence, said capping molecular layer capable of coupling to another chromophore molecular layer with a siloxane bond sequence.
2. The material of claim 1 wherein said capping layer is a polysiloxane.
3. The material of claim 2 wherein said capping layer comprises octachlorosiloxane.
4. The material of claim 1 wherein said bilayers are deposited on a substrate.
5. The material of claim 4 wherein said substrate and said bilayers are incorporated into a waveguide device.
6. The material of claim 1 wherein said chromophore is a high-β chromophore.
7. The material of claim 1 on a substrate.