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    • 75. 发明公开
    • Non-linear optical waveguiding material comprising a dopant having multiple donor-pi-acceptor systems
    • 非线性optiches含有具有多个施主 - PI - 受体系统的掺杂剂波传导材料。
    • EP0578327A1
    • 1994-01-12
    • EP93202029.0
    • 1993-07-09
    • Akzo Nobel N.V.
    • Batelaan, Jan GerardusEngbersen, Johannes Franciscus JosephKelderman, ErikReinhoudt, David NicolaasVerboom, Willem
    • G02F1/35C07C245/08C07C205/35C07C205/37C07C47/575
    • C07C47/575C07C205/35C07C205/37C07C245/08G02F1/3615
    • The invention relates to an optically non-linear active waveguiding material comprising an optically transparent polymer and a non-linear optical dopant comprising more than one donor-π-acceptor unit.
      Dopants comprising more than one donor-π-acceptor unit, especially dopants in which the donor-π-acceptor units are positioned in a cyclic group, have a high hyperpolarisability and a charge-transfer absorption band wavelength which is about the same as that of dopants with only one donor-π-acceptor unit.
      Especially suitable dopants for use are calix(4)arenes. These are provided with acceptor groups at the upper rim and with donor groups at the lower rim. In addition to having excellent hyperpolarisability, these compounds were found to be readily soluble in host polymers, such as PMMA and polystyrene. Because of their charge-transfer absorption band at a low wavelength, optically non-linear active waveguiding structures containing such dopants are suitable for use as frequency doublers.
      The invention further relates to hitherto undisclosed calix(4)arenes functionalised with nitrostilbene groups, cyanostilbene groups, sulphonyl stilbene groups, sulphonate stilbene groups, azobenzenes or benzylidene aniline compounds.
    • 本发明涉及在光学非线性活性的波导材料,它包括光学透明的聚合物和非线形光学掺杂剂含有多于一个给体 - 受体的PI单元的。 掺杂剂含有多于一个给体 - 受体单元PI,爱特别的掺杂剂,其中所述供体-π受体单元以环状基团定位,具有高的超北极星能力和电荷转移吸收波长频带的所有其象具有大约相同的 掺杂剂仅具有一个供体 - 受体PI单元。 使用特别合适的掺杂剂是杯形(4)芳烃。 这些是在上边缘和与下轮辋供体基团设有受体基团。 除了具有优异的超能力北极星聚苯乙烯,发现论文化合物是易溶于主体聚合物,颜色:诸如PMMA和。 因为在低波长他们的电荷转移吸收带的,含掺杂剂谋求光学非线性活性的波导结构是适合于用作倍频器。 本发明还涉及到尚未公开的杯形(4)芳烃官能硝基茋基,氰基均基,磺酰基茋基,磺酸酯基团的二苯乙烯,偶氮苯或亚苄基苯胺化合物。