Investigation of nonlinear optical properties of organic dye by Z-scan technique using He-Ne laser

被引：72

作者：

Ali, QM ^{[1
]}

Palanisamy, PK ^{[1
]}

机构：

[1] Anna Univ, Dept Phys, Ctr Laser Technol, Madras 600025, Tamil Nadu, India

来源：

OPTIK | 2005年 / 116卷 / 11期

关键词：

nonlinear optics; nonlinear refraction index; nonlinear absorption; nonlinear materials; Z-scan;

D O I：

10.1016/j.ijleo.2005.05.001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The third-order nonlinear optical properties of Basic Green I dye were measured by the Z-scan technique and measurements were carried out at different concentrations and several incident intensities. The results showed that the Basic Green 1 dye exhibited large nonlinear refractive coefficient (n(2) = - 1.63 x 10(-7) cm(2)/W) and nonlinear absorption coefficient (beta = -1.7 x 10(-3) cm/W) at the wavelength 632.8 nm of He-Ne. The negative sign of the nonlinear refractive index n(2) indicates that this material exhibits self-defocusing optical nonlinearity. These results show that Basic Green I dye has potential applications in nonlinear optics. (c) 2005 Elsevier GmbH. All rights reserved.

引用

页码：515 / 520

页数：6

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