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Title of article :
Nonlinear optical properties in novel crosslinked system with host–guest and side chain
Author/Authors :
Cho، نويسنده , , Young Sun and Lee، نويسنده , , Jae-Suk and Cho، نويسنده , , Gyoujin and Wada، نويسنده , , Tatsuo and Sasabe، نويسنده , , Hiroyuki، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2001
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Abstract :
Crosslinkable polymer with host–guest and side chain system was investigated to increase the content of NLO chromophores in second order nonlinear optics. Though very low poling temperature has been applied, the observed UV absorption difference before and after poling was large due to low glass transition temperature of the polymer and high content of chromophores introduced by side chain and guest molecules. Highly stable NLO properties have been achieved through crosslinked polymer matrices. The crosslink reaction between polymer matrix and chromophore was confirmed by FT-IR and 29Si solid state NMR. The d33 values of modified DR1/polymer films are high, around 40 pm/V, and there is a no change during 2 months at ambient temperature though for some samples d33 values slightly decreased.
Keywords :
NLO , Crosslinking system , 29Si solid NMR
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