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    • 10. 发明授权
    • Optical component based on Langmuir-Blodgett layers
    • 基于Langmuir-Blodgett层的光学元件
    • US5517350A
    • 1996-05-14
    • US366022
    • 1994-12-29
    • Ivan CabreraUwe FalkWerner HickelDonald LupoAndreas MayerGeorg PawlowskiUde Scheunemann
    • Ivan CabreraUwe FalkWerner HickelDonald LupoAndreas MayerGeorg PawlowskiUde Scheunemann
    • B32B7/02C08J5/18C08L101/00G02F1/35G02F1/355G02F1/361
    • G02F1/3618B82Y20/00G02F1/3616
    • An optical component comprises an electromagnetic radiation-transparent polymeric medium having a second-order susceptibility of at least 10.sup.-9 electrostatic units where this polymeric medium comprises compounds having polar-aligned noncentrosymmetric molecular dipoles which have as structural element an electron acceptor which is bound to an electron donor via a conjugated .pi.-electron system, which makes possible an oscillation of the molecular dipole between a ground state having a first dipole moment and an electronically excited state having a second dipole moment different from the first, and the nonionic polymeric medium comprises an alternating arrangement of at least one Langmuir-Blodgett film each of at least two different nonionic polymers having nonlinear optical properties. Besides high mechanical and chemical stability the optical component of the invention has excellent nonlinear optical properties, for example frequency-doubling.
    • 光学部件包括具有至少10-9个静电单元的二阶易感性的电磁辐射透明聚合物介质,其中该聚合物介质包含具有极性取向的非中心对称分子偶极子的化合物,其具有作为结构元件的电子受体,其结合到 通过共轭π电子系统的电子给体,其使得可能在具有第一偶极矩的基态和具有不同于第一偶极矩的第二偶极矩的电子激发态之间的分子偶极子的振荡,并且非离子聚合物介质包括 具有至少两种具有非线性光学性质的至少两种不同的非离子聚合物的至少一种Langmuir-Blodgett膜的交替排列。 除了高机械和化学稳定性外,本发明的光学部件具有优异的非线性光学性质,例如倍频。