1989 年 16 巻 1 号 p. 17-25
Organic nonlinear optical materials have recently attracted high attention because of their superior properties such as larger susceptibility, faster response, multiplicity in morecular and aggregating structures, compared with those of inorganic and semiconductiong substances so far elucidated. In the first, various nonlinear optical effects and their applications are explained. Thereafter, pioneering achievements of opto-electronic properties are summarized. A recent trend in progress and future perspective of the relevant fields are also presented in view of molecular engineering, crystal engineering and morphological engineering, with particular reference to crystallography and crystal growth.