Three-dimensional finite-difference time-domain study of enhanced second-harmonic generation at the end of a apertureless scanning near-field optical microscope metal tip

被引：20

作者：

Laroche, T ^{[1
]}

Baida, FI ^{[1
]}

Van Labeke, D ^{[1
]}

机构：

[1] Univ Franche Comte, UMR 6174, Inst FEMTO ST, Dept Opt, F-25030 Besancon, France

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2005年 / 22卷 / 05期

关键词：

D O I：

10.1364/JOSAB.22.001045

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We use a finite-difference time-domain method to model the experiments of second-harmonic generation at the apex of a metallic tip used in a scanning near-field optical microscope. We calculate the linear diffracted field and the second-harmonic field. In the near field we compare the confinement of the two fields around the apex. In the far field we determine the spectral responses versus the sample tip coupling. (c) 2005 Optical Society of America.

引用

页码：1045 / 1051

页数：7

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