Giant nonlinear optical activity in an aggregated silver nanocomposite

被引:16
作者
Drachev, VP [1 ]
Perminov, SV
Rautian, SG
Safonov, VP
机构
[1] Russian Acad Sci, Inst Semicond Phys, Siberian Branch, Novosibirsk 630090, Russia
[2] Russian Acad Sci, Inst Automat & Electrometry, Siberian Branch, Novosibirsk 630090, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/1.567923
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Nonlinear optical activity due to spatial dispersion is observed in a colloidal solution of silver. It is shown experimentally that the effect is substantially enhanced (by a factor of similar to 10(2)) when the silver particles aggregate into fractal clusters. The self-rotation angle of the plane of polarization is 2 mrad at an intensity of 2 MW/cm(2) for lambda = 0.532 mu m and a pulse duration of 11 ns. A method of separating the contributions of the local and nonlocal effects to the rotation of the plane of polarization is proposed and implemented. (C) 1998 American Institute of Physics. [S0021-3640(98)00520-9].
引用
收藏
页码:651 / 656
页数:6
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