A third-order nonlinear optical element (11) showing wide employable wave-length range of input light, high speed operation and low light intensity of input light is disclosed. The third-order nonlinear optical element (11) of the present invention has at least two substantially optically smooth surfaces and comprise a charge-transfer complex consisting essentially of (i) at least one electron-accepting component selected from the group consisting of cyano compounds, quinones, nitro compounds, acid anhydride, halogenes, and halogenated carbons; and (ii) at least one electron-donating component selected from the group consisting of unsaturated cyclic hydrocarbon compounds, unsaturated heterocyclic compounds, chalcogen-containing compounds, quarternary unsaturated heterocyclic compounds and metals. The charge-transfer complex of nonlinear optical element (11) of the present invention is formed of said at least one electron-accepting component and said at least one electron-donating component in the ground state and at least one of said components is an organic compound having π -conjugated system.
本发明公开了一种三阶非线性光学元件 (11),它具有输入光波长范围宽、运行速度快和输入光强度低的特点。本发明的三阶非线性光学元件(11)至少有两个基本光滑的表面,并包含一个电荷转移复合物,该复合物主要由以下部分组成:(i) 至少一个从
氰基化合物、
醌类化合物、
硝基化合物、酸酐、卤烯和卤代碳组成的组中选出的电子接受成分;以及 (ii) 至少一个从
氰基化合物、
醌类化合物、
硝基化合物、酸酐、卤烯和卤代碳组成的组中选出的电子拒绝成分;(ii) 至少一种电子供体,选自由不饱和
环烃化合物、不饱和
杂环化合物、含瑀化合物、四元不饱和
杂环化合物和
金属组成的组。本发明非线性光学元件(11)的电荷转移复合物是由所述至少一种电子接受组分和所述至少一种电子捐献组分在基态下形成的,且所述组分中至少有一种是具有π-共轭体系的有机化合物。