期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 934, 期 1-3, 页码 86-90出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molstruc.2009.06.023
关键词
Multi-branched molecules; Third-order nonlinear optics; Nonlinear absorption; Nonlinear refraction
资金
- National Natural Science Foundation of China [90201002, 50673076]
A series of non-identical three-branched molecules with two D-pi-D' and one D-pi-A branchs were synthesized based on triphenylamine as a core. Both the lambda(ab)(max) and lambda(n)(max) are red-shifted slightly with the strength of the peripherical acceptor reducing in these molecules. Their third-order nonlinear optical properties were measured by Z-scan technique with a Ti: Sapphire laser (2.5 ps, 76 MHz, 38 mW) at 800 nm in chloroform. All the six molecules display nonlinear refraction and nonlinear absorption response at this condition. The results indicate that both the nonlinear absorption and nonlinear refraction response increase with the strength of acceptor weakening in these molecules, and the Re(chi((3))) of these molecules are three orders of magnitude larger than their Im(chi((3))). (c) 2009 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据