Large and ultrafast third-order optical nonlinearity of novel copolymers containing fluorene and tetraphenyldiaminobiphenyl units in backbones

被引：19

作者：

Huang, WT

Wang, SF

Yang, H

Gong, QH ^{[1
]}

Zhan, XW

Liu, YQ

Zhu, DB

机构：

[1] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[3] Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 350卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0009-2614(01)01220-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A femtosecond time-resolved optical Kerr gate method, using 115 fs laser pulses at 830 nm, has been applied to investigate the third-order nonlinearity of two novel copolymers containing fluorene and tetraphenyldiaminobiphenyl units in their backbones. Ultrafast off-resonant optical Kerr responses have been observed and the magnitude of the second-order hyperpolarizability was measured as large as 10(-30) esu. The origin of the extraordinary large value was explored and compared to other organic materials. (C) 2001 Elsevier Science B.V. All rights reserved.

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收藏

页码：99 / 105

页数：7

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