设计并合成了3种具有较高双光子吸收截面的新型二苯乙烯衍生物双光子生色团，利用在飞秒激光下的双光子漂白现象，在掺杂有3种二苯乙烯衍生物的聚甲基丙烯酸甲酯薄膜内进行了三维数据光存储实验，研究了三者的双光子漂白能力并分析了激发功率对双光子荧光行为的影响。双光子漂白光存储的特性表明：曝光时间一定时，降低激发功率可以提高分辨率；激发功率不变，降低曝光时间也可以提高分辨率；但要提高存储速度，需用较大的激发功率。采用较大的激发功率（13.4 mW）和较短的曝光时间（20 ms），利用双光子写入和读出方法在掺杂薄膜内部实现了三维超高密度光存储，理论存储密度可达14 Gbit/cm3。双光子漂白速率对激发功率的依赖关系的研究表明，双光子漂白的机理涉及到三个光子的协同作用。

Three novel stilbene derivatives with high two-photon cross-section are designed and synthesized as two-photon chromophores. Three-dimensional (3D) optical data storage experiments are carried out by two-photon photobleaching with a femtosecond laser in three stilbene derivatives doped polymethylmethacryate film. Research on the two-photon photobleaching ability of three two-photon chromophores shows that the chromophore with larger two-photon cross-section could be photobleached at lower excitation power. The effects of excitation power on two-photon fluorescence behaviors are also analyzed. The characters of optical data storage reveal that the resolution in two-photon photobleaching could be increased by lowing excitation power when exposure time is kept the same or by lowing exposure time when excitation power is kept the same. However, larger excitation power is often used to obtain high data storage rate. Two-photon writing and two-photon reading experiment realizes 3D ultrahigh optical data storage with a theoretical storage density of 14 Gbit/cm3 in doped film under higher excitation power (13.4 mW) and shorter exposure time (20 ms). The cubic dependence of two-photon photobleaching dynamics on excitation power indicates that the mechanism of two-photon photobleaching concerns the joint action of three photons.