Synthesis and Nonlinear Optical Properties of a New Two-photon Polymerization Initiator: DPAMOB with a Large TPA Cross-section

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2006,（5）
• 页码范围: 701-704
• 页数: 4页
• 语种: 英文

摘要

E,E-1,4-Bis(4′-N,N-diphenylaminostyryl)-2,5-dimethoxybenzene (DPAMOB) has been synthesized by a simple and effective solid phase Wittig reaction and characterized by 1H NMR spectra and elemental analysis. Linear absorption, single-photon induced fluorescence and two-photon induced fluorescence spectra were experimentally studied. The new dye has a large two-photon absorption (TPA) cross-section of σr= 1007.2 GM [1 GM= 1 × 10-50results confirm that DPAMOB is a good TPA chromophore and can successfully initiate two-photon photopolymerization of ethoxylated trimethylolpropane triacrylate esters (SR454). Finally, a microstructure has been fabricated by use of DPAMOB as initiator.