Photochromic diarylethene for two-photon 3D optical storage

We had accomplished recording and readout of bit patterns by two-photon 3D optical storage technology using a new photochromic diarylethene, 1,2-bis(2-methyl-5-methylene-n-butylamido-thien-3-yl) perfluorocyclopentene (BMMBTP), as memory medium. The photochromic reaction, both in solution and in poly(methyl methacrylate) (PMMA) amorphous film, and fluorescence property of BMMBTP were investigated.