According to photobleaching three-dimensional(3-D) optical information storage theory of two-photon absorption,the Ti:Sapphire femtosecond pulse laser was used as writting beam and readout beam of two-photon 3-D optical storage.The writting and readout experiment for two-photon photobleaching in the new material consisting of BMOSF fluorene derivatives was carried out,and six-layer optical data storage was realized.The distance between two adjacent bits in each layer is 8 μm and the interval bet...