Optical nonlinearity enhancement for an anisotropic semiconductor-insulator composite

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	Optical nonlinearity enhancement for an anisotropic semiconductor-insulator composite
	B. F. Yang; C. X. Zhang; Q. Q. Wang; D. C. Tian
	2002
发表期刊	Applied Physics a-Materials Science & Processing
ISSN	0947-8396
卷号	75 期号:3 页码:411-416
摘要	We investigate the effect of geometric anisotropy on the optical nonlinearity enhancement for a periodic composite with a rectangular array of elliptic semiconducting cylinders in an insulating host. By using a series expression of the space-dependent electric field obtained by a simple Fourier method in a periodic composite, we calculate the frequency dependence of the effective third-order nonlinear susceptibility as a function of anisotropy. The results show that the height of the nonlinearity enhancement peak may be increased by several orders of magnitude as the aspect ratio of the ellises is decreased or the lattice edge length ratio is increased. At resonance frequency, there exists a strong anomalous dispersion. We also investigate the effect of the volume fraction of the semiconductor phase for composites with a square array of circular semiconducting cylinders.
部门归属	wuhan univ, dept phys, wuhan 430072, peoples r china. jilin univ, dept phys, changchun 130023, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;yang, bf (reprint author), wuhan univ, dept phys, wuhan 430072, peoples r china
关键词	Effective Dielectric-constant Periodic Composites Fourier Approach Susceptibility Microstructures Media
URL	查看原文
WOS记录号	WOS:000176128800010
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36483
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. F. Yang,C. X. Zhang,Q. Q. Wang,et al. Optical nonlinearity enhancement for an anisotropic semiconductor-insulator composite[J]. Applied Physics a-Materials Science & Processing,2002,75(3):411-416.
APA	B. F. Yang,C. X. Zhang,Q. Q. Wang,&D. C. Tian.(2002).Optical nonlinearity enhancement for an anisotropic semiconductor-insulator composite.Applied Physics a-Materials Science & Processing,75(3),411-416.
MLA	B. F. Yang,et al."Optical nonlinearity enhancement for an anisotropic semiconductor-insulator composite".Applied Physics a-Materials Science & Processing 75.3(2002):411-416.