Finally, we investigated the second-order molecular polarizability and the molecular orientation in LB films by the second-harmonic generation (SHG) measurement.

• 利用吸光度与单层膜的吸收系数的关系可以得知，此花菁染料LB膜的单层 膜的吸收系数 与入射波的波长相关，满足关系式 。