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The development of chemical processing methods for the fabrication of glass and ceramic shapes for photonic
applications is frequently Edisonian in nature. In part, this is because the numerous variables that must be optimized to
obtain a given material with a specific shape and particular properties cannot be readily defined based on fundamental
principles. In part, the problems arise because the basic chemistry of common chemical processing systems has not been
fully delineated. The prupose of this paper is to provide an overview of the basic chemical problems associated with
chemical processing. The emphasis will be on sol-gel processing, a major subset pf chemical processing. Two alternate
approaches to chemical processing of glasses are also briefly discussed. One approach concerns the use of bimetallic
alkoxide oligomers and polymers as potential precursors to mulimetallic glasses. The second approach describes the utility
of metal carboxylate precursors to multimetallic glasses.
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