论文部分内容阅读
本文论述了有机及高分子非线性光学材料倍频性能产生原理,各种非线性化合物的合成方法及影响倍频效率的因素。化合物分子结构中的共轭π-电子体系在光学外场作用时发生极化,产生非线性倍频效应。在结构上引入推电子与受电子基团,形成A~(δ-)-D~(δ+)分子结构,将提高化合物的分子电极化率。在二乙炔衍生物上引入非线性性能高的有机基团,经固态晶相聚合,可获得改性的高分子非线性光学材料。
In this paper, the principle of multiplicative properties of organic and polymer nonlinear optical materials, the synthesis methods of various nonlinear compounds and the factors that influence the frequency multiplication efficiency are discussed. The conjugated π-electron system in the molecular structure of a compound polarizes in the optical field and produces a nonlinear frequency doubling effect. The structure of A ~ (δ -) - D ~ (δ +) molecular structure is introduced by the introduction of electron and electron donating groups, which will increase the molecular polarizability of the compound. In the diacetylene derivatives introduced on the high performance of non-linear organic groups, the solid phase polymerization, can be obtained modified polymer nonlinear optical materials.