The first-order approximation formulae, numerical calculation and experiential formulae methods were used to analyze the photochromic properties of materials and fit the transmission kinetic curve, the photochemical reaction constant γ of different wavelengths were obtained. 采用一阶近似、数值计算和经验公式拟合的方法对光致变色特性进行理论分析和实验曲线拟合,得到了光反应速率常数γ拟合值。
Static test experiments using two sample plates for reflection and transmission demonstrated that increasing the photochromic mask layer density increased the media's non linearity and the photochromic reaction macroscopic speed nonuniformity. 根据上述原理制成反射、透射两种实验样片,静态测试实验表明:光致变色掩膜层浓度大时,光致变色反应宏观速率的不均匀性加大,介质的非线性特性增强;
A model for the static laser spot indicates that the non linearity of the photochromic media is caused by the macroscopic reaction speed nonuniformity. Increasing the difference between the total reaction speed and the local reaction speed improves the masking effect. 根据光化学原理建立的静态光斑模型表明:介质的这种非线性特性是由局部反应宏观速率的不均匀性造成的,总宏观速率与局部宏观速率差异越大,掩膜效果越好。
Therefore, the cleavage of the Hg-S bond and the proton transfer are the decisive steps for the photochromic reaction of this complex. 因此可以认为:硫汞键的断裂以及质子转移过程是该类材料能发生光色互变反应的关键性步骤。
The photochromic reaction of BR results in the photoinduced refractive index change. It is necessary to study the photoinduced absorption change and the photoinduced refractive index change under different wavelengths for holographic application. 细菌视紫红质的光致变色反应导致光致折射率的变化,对其在不同波长下光致吸收变化与光致折射率变化量的研究对于全息记录应用是非常必要的。