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    Synthesis and evaluation of new nonlinear optical organic compounds.

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    Author
    Mitchell, Michael Anthony.
    Issue Date
    1991
    Keywords
    Dissertations, Academic
    Chemistry, Organic
    Optics.
    Advisor
    Hall, Jr., Henry K.
    
    Metadata
    Show full item record
    Publisher
    The University of Arizona.
    Rights
    Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
    Abstract
    Nonlinear optical (NLO) materials are of current interest because of their potential applications in the development of optical computers, switches, and information storage devices, as well as laser attenuation. Organic molecules with a donor group and an acceptor group connected through a pi system exhibit a large second order NLO response, the NLO characteristic of the most interest. Previous studies have suggested that by having the NLO molecular units connected in series there is a synergistic enhancement of the NLO effect. In an effort to study this enhancement various p-aminophenyl sulfone monomers, dimers, and trimers were synthesized and evaluated. The results from this study did not confirm such enhancement, and indicate that much more work needs to be done. Also, another class of monomer which was expected to have a high NLO efficiency was synthesized. These monomers were polymerized via condensation polymerization to give the polyesters, which contained a stilbene moiety. These polymers were found to be tractable and possess a high glass transition temperature, which is very desirable. Finally, a method based on simple spectrophotometric measurements, and ground state dipole moment measurements, was evaluated and refined. This method, while not as accurate as standard techniques, is low cost, and simpler to conduct.
    Type
    text
    Dissertation-Reproduction (electronic)
    Degree Name
    Ph.D.
    Degree Level
    doctoral
    Degree Program
    Chemistry
    Graduate College
    Degree Grantor
    University of Arizona
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    Dissertations

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