Microelectrodes including an upper surface, two walls, and a polymer core are described. In addition, microelectrodes including a metal thin film are described. Processes for fabricating microelectrodes including providing a substrate including at least one polymer micro-ridge are also described. Processes for fabricating an electro-optic device including providing a substrate including at least two polymer micro-ridges are also described. In addition, a process including reacting an alkoxysilane, an (epoxy)alkoxysilane, and a fluorinated alkoxysilane to form a fluorinated sol-gel polymer, and reacting a nonlinear optical chromophore comprising a donor, a p-bridge, an acceptor, and at least one alkoxysilyl group with the fluorinated sol-gel polymer to form a nonlinear optical fluorinated sol-gel polymer is also described.
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