Transient nonlinear optical response of novel neutral unsymmetrical nickel dithiolene complexes

被引：40

作者：

Aloukos, P.

Couris, S.

Koutselas, J. B.

Anyfantis, G. C.

Papavassiliou, G. C.

机构：

[1] Fdn Res & Technol Hellas, Inst Chem Engn & High Temp Chem Proc, Patras 26504, Greece

[2] Univ Patras, Dept Phys, Patras 26504, Greece

[3] Univ Patras, Dept Mat Sci, Patras 26504, Greece

[4] Natl Hellen Res Fdn, Inst Theoret & Phys Chem, GR-11635 Athens, Greece

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 428卷 / 1-3期

关键词：

D O I：

10.1016/j.cplett.2006.06.056

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：

The transient nonlinear optical response of five novel unsymmetrical neutral nickel dithiolene complexes has been studied experimentally in the nanosecond regime at 532 and 1064 nm using the Z-scan technique. The nonlinear absorption and refraction parameters beta and gamma' respectively, the third order susceptibility chi((3)) of the solutions and the effective second-order hyperpolarizability gamma of the complexes were determined at both wavelengths. All dithiolene complexes studied were found to exhibit significant nonlinear refraction, larger than the corresponding nonlinear absorption. The second-order hyperpolarizabilities gamma values were found to be as large as 10(-27) esu. The origins of the observed nonlinear optical response are also discussed. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：109 / 113

页数：5

共 9 条

[1] CONCENTRATION AND WAVELENGTH DEPENDENCE OF THE EFFECTIVE 3RD-ORDER SUSCEPTIBILITY AND OPTICAL LIMITING OF C-60 IN TOLUENE SOLUTION [J].