An optically transparent material with nonlinear optical characteristics, comprising a highly face-to-face oriented main chain type liquid crystal polymer comprising repeating monomer units represented by the following general formula and having second-order and third-order nonlinear optical susceptibilities, X(2) and X(3): -(A)x-(B)y- wherein A represents a residue of 6-hydroxy-2-naphthoic acid of formula (I), B represents a residue of 4-hydroxybenzoic acid of formula (II), x falls within the range of 1-99 mole %; and y falls within the range of 99.1 mole %.
一种具有非线性光学特性的光学透明材料,由高度面向定向主链型液晶聚合物组成,该聚合物由以下通式表示的重复单体单元组成,具有二阶和三阶非线性光学感度X(2)和X(3):-(A)x-(B)y- 其中 A 代表式(I)的 6-羟基-2-
萘酸的残余物,B 代表式(II)的
4-羟基
苯甲酸的残余物,x 在 1-99 摩尔%的范围内;y 在 99.1 摩尔%的范围内。