High Nonlinear Optic Activity Chromophore-Design and Synthesis
High Nonlinear Optic Activity Chromophore-Design and Synthesis作者机构：Corning Incorporated SP-FR-6 Corning NY 14831 USACorning Incorporated SP-FR-6 Corning NY 14831 USA
出 版 物：《合成化学》 (Chinese Journal of Synthetic Chemistry)
年 卷 期：2004年第12卷第Z1期
页 面：7-7页
主 题：Synthesis, chromophores, Nonlinearity, optical materials, poling, EO coefficient
摘 要：Chromophores are the center piece of second order nonlinear optical (NLO) *** common chromophore consists of a Donor-Bridge-Acceptor structure. Donors and acceptors are connected by a bridge and together they make a fully conjugated system. Based on our previously synthesized novelacceptors [1], we have synthesized a large number of high electro-optic chromophores. In this paper, we report four general types of chromophore that *** during the last few years in our laboratory. Due to The general nature of our chromophore s structure it is best described as:In these structures, R2 and R3 are different groups or a spiro ring junction. Since they are connected to the chromophore with an SP3 hybridized carbon at the furan ring, they are both out of the plane of the conjugated chromophore system. This unique design greatly increases the chromophore s solubility and processability. We believe this design also prevents the highly dipolar,flat chromophores from achieving - stacking resulting on easier poling and a higher EO *** poling results proved our hypothesis with a world record 70 pm/V EO coefficient has been obtained at 1550nm in this class of chromophores.
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