3 January 2005 Investigation of novel two-photon diarylethene for 3D optical data storage
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Abstract
3D optical data storage can benefit from the non-linear process of two-photon absorption (TPA). If some chromphores with large TPA cross section are introduced into the diarylethene to enhance its two-photon absorptivities, it is expected to be good recording media for 3D optical data storage. The authors have synthesized four diarylperfluorocyclopentene (DPFCP) derivates for the purpose of developing two-photon 3D optical data storage. The nonlinear two-photon absorption (TPA) properties of the compounds were examined, and the reaction and excited state relaxation dynamics after two-photon excitation were investigated. The TPA cross sections of 2-position DPFCPs were measured by means of TPIF (two-photon induced fluorescence) method, and the highest is 48×10-50cm4•s•photo-1•molecule-1. The compounds were successfully applied in two-photon 3D optical data storage based on single beam two-photon femtosecond writing and one-photon fluorescence reading. Ten-layer clear images on DPFCP/PMMA film were obtained, and the data storage density is high to 2.0×1011 bits/cm3.
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Fushi Zhang, Fushi Zhang, Fengying Xu, Fengying Xu, Fan Sun, Fan Sun, Funqun Zhao, Funqun Zhao, Xuedong Liu, Xuedong Liu, Wenhao Huang, Wenhao Huang, } "Investigation of novel two-photon diarylethene for 3D optical data storage", Proc. SPIE 5643, Advances in Optical Data Storage Technology, (3 January 2005); doi: 10.1117/12.581025; https://doi.org/10.1117/12.581025
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