FACE-TO-FACE ORIENTED NONLINEAR OPTICAL MATERIAL AND METHOD OR ORIENTATION THEREOF
申请人:OSAKA GAS CO., LTD.
公开号:EP0555490A1
公开(公告)日:1993-08-18
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 %.