FRACTALS - LOCALIZATION OF DIPOLE EXCITATIONS AND GIANT OPTICAL POLARIZABILITIES

被引：44

作者：

SHALAEV, VM

BOTET, R

TSAI, DP

KOVACS, J

MOSKOVITS, M

机构：

[1] UNIV PARIS 11, CTR ORSAY, PHYS SOLIDES LAB, F-91405 ORSAY, FRANCE

[2] UNIV TORONTO, ONTARIO LASER & LIGHTWAVE RES CTR, TORONTO M5S 1A1, ONTARIO, CANADA

[3] UNIV TORONTO, DEPT CHEM, TORONTO M5S 1A1, ONTARIO, CANADA

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 1994年 / 207卷 / 1-3期

关键词：

D O I：

10.1016/0378-4371(94)90373-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Highly localized optical modes laser-excited on silver colloid fractal clusters were observed using photon scanning tunnelling microscopy (PSTM). The spatial distribution of the modes excited shows the frequency and polarization selectivity suggested by numerical simulations. The localization of the optical excitations on fractals results in very high local fields leading to the huge enhancement of resonant Rayleigh, Raman and, especially, nonlinear light scattering. The experimental results verify the main concepts of the developed resonant optical theory of fractals.

引用

页码：197 / 207

页数：11

共 33 条

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