Near-field optical study of selective photomodification of fractal aggregates

被引：13

作者：

Bragg, WD ^{[1
]}

Markel, VA

Rim, WT

Banerjee, K

Young, MR

Zhu, JG

Armstrong, RL

Shalaev, VM

Ying, ZC

Danilova, YE

Safonov, VP

机构：

[1] New Mexico State Univ, Dept Phys, Las Cruces, NM 88003 USA

[2] Russian Acad Sci, Inst Automat & Electrometry, Novosibirsk 630090, Russia

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2001年 / 18卷 / 05期

关键词：

D O I：

10.1364/JOSAB.18.000698

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Selective photomodification of fractal aggregates of silver nanoparticles is studied experimentally by photon-scanning-tunneling microscopy. Near-field optical images of the aggregates before and after photomodification show changes in the distribution of local electromagnetic fields in the near zone at subwavelength scale. These changes are much stronger than those measured in the far field. Results from numerical modeling of photomodification are in qualitative agreement with the experimental observations. (C) 2001 Optical Society of America.

引用

页码：698 / 705

页数：8

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