Second and third harmonic generations in random composites of nonlinear dielectrics

被引：5

作者：

Hui, PM ^{[1
]}

Cheung, P ^{[1
]}

机构：

[1] Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China

来源：

PHYSICA B | 2000年 / 279卷 / 1-3期

关键词：

nonlinear composites; harmonic generations; effective medium theory;

D O I：

10.1016/S0921-4526(99)00663-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the effective nonlinear susceptibility tensor d(- 2 omega;omega,omega) for second-harmonic generation and chi for third-harmonic generation in a nonlinear composite medium. Simple expressions for these susceptibilities in terms of the position-dependent nonlinear susceptibilities of the constituents and local field factors in a corresponding linear medium are used to evaluate the nonlinear response. These expressions are useful starring points to develop effective medium approximations. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：45 / 47

页数：3