Simultaneous observation of light localization and confinement in near-field optics

被引：6

作者：

Peyrade, D

Quidant, R

Weeber, JC

Dereux, A

Lévêque, G

Girard, C

Chen, Y

机构：

[1] CNRS, Lab Microstruct & Microelect, F-92225 Bagneux, France

[2] Univ Bourgogne, Phys Lab, F-21078 Dijon, France

[3] CNRS, CEMES, Toulouse, France

[4] CNRS, LCAR, Toulouse, France

[5] CNRS, Lab Microstruct & Microelect, F-92225 Bagneux, France

来源：

EUROPHYSICS LETTERS | 2001年 / 56卷 / 04期

关键词：

D O I：

10.1209/epl/i2001-00550-y

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the observation, in direct space, of both light localization and confinement effects near lithographically designed structures. The sample is observed in the optical near-field zone with a Photon Scanning Tunneling Microscope (PSTM). Several patterns composed of a few periods of TiO2 dots, arranged as a hexagonal lattice, have been investigated. When the central dot of the pattern is removed, a phenomenon of light localization above the vacancy can be observed in the PSTM image. The occurrence of this phenomenon can be related to the variation of the electromagnetic local density of state.

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页码：517 / 522

页数：6

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