A novel organic non-linear optical material and a device using the same are disclosed. The material hardly makes reversal symmetrical molecular configuration in a bulk state such as a crystal and a thin layer and shows a high non-linear optical effect. A non-linear optical device using the material has an excellent properties. The organic non-linear optical material is comprised of the following compound:
wherein R₁, R₃ and R₄ are independently a hydrogen atom, a cyano group, a phenyl group, an amino group, an alkoxy group, an acylamino group, an alkylthio group, an alkyl group, an alkoxyycarbonyl group, carbamoyl group or a heterocyclic group, provided that R₃ is allowed to link together with R₄ to form a ring and R₁, R₃ and R₄ are not hydrogen atom at the same time; R₂ is a hydrogen atom, an alkyl group or an acyl group; and said groups represented by R₁, R₂, R₃, R₄ and the ring formed by linking the groups represented by R₃ and R₄ are allowed to have a substituent.
本研究公开了一种新型有机非线性光学材料和使用该材料的设备。该材料在晶体和薄层等块状状态下几乎不存在反向对称分子构型,并显示出较高的非线性光学效应。使用该材料的非线性光学器件具有优异的性能。有机非线性光学材料由以下化合物组成:
其中 R₁、R₃ 和 R₄ 独立地为氢原子、
氰基、苯基、
氨基、烷氧基、酰
氨基、烷
硫基、烷基烷氧基羰基、
氨基甲酰基或杂环基团,条件是允许 R₃ 与 R₄ 连接形成环,且 R₁、R₃ 和 R₄ 同时不是氢原子;R₂ 是氢原子、烷基或酰基;R₁、R₂、R₃、R₄ 所代表的基团以及由 R₃ 和 R₄ 所代表的基团连接形成的环允许具有取代基。