申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0293093A2
公开(公告)日:1988-11-30
An optical element, such as a wave guide, having non-linear optical properties, suitable for use in optical devices in which it is desirable to alter the characteristics of the light, comprising a transparent or reflecting substrate having at least a partial superficial coating comprising alternating monolayers of a first non-linear optical (NLO) compound of the formula:
wherein
R is an non-hydrophilic aliphatic or cycloaliphatic group containing from 8 to 40 carbon atoms;
m is 1 or 2;
R¹ is NO₂, CN or COOR²;
R² is H or C₁₋₄-alkyl;
n is from 1 to 4
and R³ is H, a metal or a group containing a tetravalent N atom and a second NLO compound of the formula:
wherein T is H, a metal or a group containing a tetravalent N atom;
T¹ is NO₂, CN or COOY;
Y is selected from H, C₁₋₄-alkyl, a metal or a group containing a tetravalent N atom;
T² & T³ are each independently H or a non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms;
T⁴ & T⁵ are each independently H or a non-hydrophilic aliphatic or cycloaliphatic group containing up to 30 carbon atoms;
and T⁶ & T⁷ are each independently H or a non-hydrophilic group containing up to 4 carbon atoms;
or T⁴ & T⁶ together comprise ring fused to Ring A and T⁵ & T⁷ are as hereinbefore defined;
or T⁵ & T⁷ together comprise ring fused to Ring A and T⁴ & T⁶ are as hereinbefore defined;
or T² & T⁴ together with the N atom to which T² is attached from a ring fused to Ring A and T³ & T⁵ are as hereinbefore defined;
or T³ & T⁵ together with the N atom to which T³ is attached from a ring fused to Ring A and T² & T⁴ are as hereinbefore defined;
provided there are, in total, from 8 to 40 atoms in one or two of the groups independently represented by T², T³, T⁴ & T⁵.
一种具有非线性光学特性的光学元件,如波导,适用于需要改变光特性的光学设备,包括透明或反射基底,该基底至少有部分表层涂层,该涂层包括式中第一种非线性光学(NLO)化合物的交替单层:
其中
R 是含有 8 至 40 个碳原子的非亲水性脂肪族或环脂族基团;
m 是 1 或 2;
R¹ 是 NO₂、CN 或 COOR²;
R² 是 H 或 C₁₋₄ 烷基;
n 是 1 到 4
和 R³ 是 H、金属或含有四价 N 原子的基团,以及式中的第二种 NLO 化合物:
其中 T 是 H、金属或含有四价 N 原子的基团;
T¹ 是 NO₂、CN 或 COOY;
Y 选自 H、C₁₋₄-烷基、金属或含有四价 N 原子的基团;
T² 和 T³ 分别独立地为 H 或含有多达 30 个碳原子的非亲水性脂肪族或环脂族基团;
T⁴ 和 T⁵ 各自独立地为 H 或含有多达 30 个碳原子的非亲水脂肪族或环脂族基团;
T⁶ 和 T⁷ 各自独立地为 H 或含有多达 4 个碳原子的非亲水基团;
或 T⁴ 和 T⁶ 共同组成与环 A 融合的环,且 T⁵ 和 T⁷ 如前定义;
或 T⁵ 和 T⁷ 一起包括与环 A 熔合的环,且 T⁴ 和 T⁶ 如前定义;
或 T² & T⁴ 连同 T² 所连接的 N 原子从与环 A 融合的环中脱出,且 T³ & T⁵ 如前定义;
或 T³ & T⁵,连同 T³ 所连接的 N 原子,从与 A 环熔合的环中取出,且 T² & T⁴ 如前定义;
条件是由 T²、T³、T⁴ 和 T⁵ 独立代表的一个或两个基团中总共有 8 至 40 个原子。