Squeezing the optical near-field zone by plasmon coupling of metallic nanoparticles

被引:503
作者
Krenn, JR [1 ]
Dereux, A
Weeber, JC
Bourillot, E
Lacroute, Y
Goudonnet, JP
Schider, G
Gotschy, W
Leitner, A
Aussenegg, FR
Girard, C
机构
[1] Univ Bourgogne, Phys Lab, F-21011 Dijon, France
[2] Karl Franzens Univ Graz, Inst Expt Phys, A-8010 Graz, Austria
[3] CNRS, CEMES, F-31055 Toulouse, France
关键词
D O I
10.1103/PhysRevLett.82.2590
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report on the experimental observation of near-field optical effects close to Au nanoparticles using a photon scanning tunneling microscope (PSTM). Constant height operation of the PSTM allowed an unprecedented direct comparison with theoretical computations of the distribution of the optical near-field intensity. An unexpected squeezing of the optical near field due to plasmon coupling was observed above a chain of Au nanoparticles. [S0031-9007(99)08708-6].
引用
收藏
页码:2590 / 2593
页数:4
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