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14 January 1993 Second harmonic generation studies on novel NLO-polymers
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A crosslinkable side chain NLO-polymer of the bis-azobenzene type and an AB-type main chain NLO-polymer of the sulphonyl-tolane type have been synthesized and characterized with respect to their curing and electric poling properties. NLO-susceptibilities d33 of 11 pm/V and 7.5 pm/V, respectively, have been measured after initial relaxation and proved to be highly stable. During poling, transient SH-signal and square of poling current showed similar temporal behavior. Thus transient poling current can be considered to be a useful probe to monitor and to control the poling process. Direct current electrical conductivity was found to be strongly temperature dependent for both materials.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Manfred Eich, Siegfried Ohl, Rudolf Zentel, Heike Baumann, Leonie Goebel, Hartmut Krueger, Werner F. Frank, and Theo T. Tschudi "Second harmonic generation studies on novel NLO-polymers", Proc. SPIE 1774, Nonconducting Photopolymers and Applications, (14 January 1993);

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