Light scattering enhancement in an aqueous solution of spermine-induced fractal J-aggregate composite -: art. no. 050401

被引：21

作者：

Micali, N

Villari, V

Scolaro, LM

Romeo, A

Castriciano, MA

机构：

[1] CNR, Ist Proc Chimicofis, Sez Messina, I-98123 Messina, Italy

[2] Univ Messina Salita Sperone 31, Dipartimento Chim Inorgan Chim Analit & Chim Fis, I-98166 Messina, Italy

来源：

PHYSICAL REVIEW E | 2005年 / 72卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.72.050401

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We performed an experimental investigation on the scattering and extinction properties of an aqueous solution of spermine-induced fractal J aggregates, constituted by porphyrin molecules. In analogy with nanostructured particle composites, the dipolar moments of different porphyrins, not belonging to the J aggregates, are coupled and generate a strong light scattering enhancement. Both the enhanced scattered intensity and the imaginary part of the polarizability of the system obey scaling laws with the optical spectral dimension d(0)=0.3.

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页数：4

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