Optical-limiting properties of a push-pull diphenyl-butadiene

被引：25

作者：

Oberlé, J ^{[1
]}

Bramerie, L ^{[1
]}

Jonusauskas, G ^{[1
]}

Rullière, C ^{[1
]}

机构：

[1] Univ Bordeaux 1, Ctr Phys Mol Opt & Hertzienne, CNRS, UMR 5798, F-33405 Talence, France

来源：

OPTICS COMMUNICATIONS | 1999年 / 169卷 / 1-6期

关键词：

optical limiting; two-photon absorption; diphenyl-butadiene; picosecond spectroscopy; nonlinear transmission;

D O I：

10.1016/S0030-4018(99)00364-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optical-limiting behavior of 1-(p-N,N-dimethylamino)-4-( p-cyanophenyl)-1,3-butadiene (DCB) solution in dichloromethane was experimentally and theoretically studied at 532 nm with nanosecond and picosecond pulses. Energy-dependent transmissivity measurements were fitted using a three-level molecular model including two-photon absorption. The best fits were obtained with very high two-photon absorption cross-sections, indicating that two-photon absorption is the predominant mechanism of the strong optical limiting behavior observed in a DCB solution. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：325 / 332

页数：8

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