Method for the generation of second order nonlinear optical effects, including second harmonic generation, which comprises the steps of: i preparing a material in an xy planar film or xyz tridimensional form on a substrate and placing parallel electrodes on top of, inside, above or below said material, such that there is no protrusion of said electrodes into said material or a protrusion of at least one of said electrodes into said material is thinner than said material, wherein said material comprises at least one species of a hyperpolarizable component (a) and at least one species of a glass-forming organic material (b) providing a non-crystalline solid matrix in which molecules are not mobile, said components (a) and (b) being either distinct species or portions of a bifunctional molecule; ii subjecting said material of step (i) to an electric field essentially along the x-axis thereof; and iii directing a beam of light to impinge on and to be transmitted through said material treated as in step (ii), thus generating second order nonlinear optical effects which are characterized by one or more X.sup.(2) components whose indices are zzz, zxx, zyy and permutations thereof.
产生二阶非线性光学效应的方法,包括二次谐波产生,其中包括以下步骤:i 在基底上准备一种材料,其为xy平面薄膜或xyz三维形式,并在其上方,内部,上方或下方放置平行电极,使得电极不突出进入材料中,或者至少一个电极的突出部分比材料薄,其中所述材料包括至少一种超极化组分(a)和至少一种
玻璃形成有机物质(b),提供非晶态固体基质,其中分子不可移动,所述组分(a)和(b)可以是不同的物种或双功能分子的一部分。ii 将步骤(i)中的材料置于沿x轴方向的电场中;iii 将光束引导到撞击并穿过经过步骤(ii)处理的材料中,从而产生二阶非线性光学效应,其特征是一个或多个X.sup.(2)分量,其指数为zzz,zxx,zyy和其置换。