1 September 1993 Assessment of third-order optical nonlinearities in conjugated organic polymers
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Abstract
Third-order nonlinear optical susceptibilities of substituted polythiophenes, polyanilines, and polysilanes have been estimated by third-harmonic generation measurements at 1.053 μm. Values of x3(-3ω,ω,ω,ω) for new polymers-two poly(alkoxyphenylthiophenes), a fluorinated poly(alkylthiophene), and a poly(alkoxyaniline)-were found to be in the range 0.7 x 10-12 to 2.3 x 10-12 esu, similar to those for other substituted polythiophenes and polyanilines. Values of x3(-3ω,ω,ω,ω)) are correlated with the absorption maxima for series of polythiophenes, polysilanes, and polyanilines. Third-order nonlinearities are found to depend strongly on the nature of the polymer backbone and only slightly on substituents.
Claire L. Callender, Claire L. Callender, Lucie Robitaille, Lucie Robitaille, Mario Leclerc, Mario Leclerc, } "Assessment of third-order optical nonlinearities in conjugated organic polymers," Optical Engineering 32(9), (1 September 1993). https://doi.org/10.1117/12.143910 . Submission:
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