GIANT FLUCTUATIONS OF LOCAL OPTICAL-FIELDS IN FRACTAL CLUSTERS

被引：120

作者：

STOCKMAN, MI ^{[1
]}

PANDEY, LN ^{[1
]}

MURATOV, LS ^{[1
]}

GEORGE, TF ^{[1
]}

机构：

[1] WASHINGTON STATE UNIV,DEPT CHEM,PULLMAN,WA 99164

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.72.2486

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Giant fluctuations of the intensities of local optical fields in fractal clusters are established, dependent on a high Q factor (low dissipation) of an optical resonance. We have shown that the nonlinear-optical enhancement by fractals is due to these fluctuations and not to a high mean magnitude of the local field. We have calculated the distribution function P(G) of a relative local-field intensity G and found a new scaling dependence, P(G) is-proportional-to G(-epsilon), with the index epsilon independent of an excitation frequency and dissipation rate.

引用

页码：2486 / 2489

页数：4

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