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Polar order, photoisomerization-induced

Similar PID results have been reported in very high Tg (up to SSO C) azo-polyimides. It has been shown previously that irradiation of the donor-embedded polyimide derivatives with polarized light alone at room temperature induces a quasi-permanent nonpolar orientation, which can be thermally erased only by heating the polymer above Tg. While, the lifetimes of the polar order generated by thermal poling of the donor-embedded polyimides were found to be on the order of tens of years to centuries at room temperature, photoisomerization can efficiently depole these polymer films in a matter of minutes at room temperature. Indeed, Figure 8.6 shows the effect of p-polarized irradiation on the SH signal of PI-2, which had been previously thermally... [Pg.279]

VII. Photoisomerization-induced polar order of azo dyes in bulk polymeric films for second-order nonlinear optics, 174... [Pg.118]

VII. PHOTOISOMERIZATION-INDUCED POLAR ORDER OF AZO DYES IN BULK POLYMERIC FILMS FOR SECOND-ORDER NONLINEAR OPTICS... [Pg.174]

See other pages where Polar order, photoisomerization-induced is mentioned: [Pg.118]    [Pg.122]    [Pg.272]    [Pg.279]    [Pg.280]    [Pg.445]    [Pg.118]    [Pg.175]    [Pg.175]    [Pg.177]    [Pg.179]    [Pg.181]    [Pg.183]    [Pg.184]    [Pg.185]    [Pg.186]    [Pg.187]    [Pg.189]    [Pg.191]    [Pg.122]    [Pg.272]    [Pg.279]    [Pg.280]    [Pg.299]    [Pg.445]    [Pg.48]    [Pg.234]    [Pg.275]    [Pg.378]    [Pg.172]    [Pg.75]    [Pg.79]    [Pg.108]    [Pg.272]    [Pg.293]    [Pg.409]    [Pg.580]    [Pg.50]    [Pg.167]    [Pg.119]    [Pg.153]    [Pg.187]    [Pg.1]    [Pg.79]   
See also in sourсe #XX -- [ Pg.174 , Pg.175 , Pg.176 , Pg.177 , Pg.178 , Pg.179 , Pg.180 , Pg.181 , Pg.182 , Pg.183 , Pg.184 , Pg.185 , Pg.186 , Pg.187 , Pg.188 , Pg.189 ]



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Induced polarization

Photoisomerism

Photoisomerization

Polar order

Polar ordering

Polarity induced

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